Magic: The Gathering — Mystery Booster Playtest Cards 2021 Card Prices & Values (2026)

Complete Mystery Booster Playtest Cards 2021 price guide: 121 cards tracked, total set value $56.47. Released 2026. Prices last updated: August 6, 2026.

Mystery Booster Playtest Cards 2021 Market Snapshot

Total Set Value: $56.47
Average Card Price: $0.47
Lowest Priced Card: $0.14
Cards Tracked: 121

How Guardian Calculates Mystery Booster Playtest Cards 2021 Prices

Guardian builds this set price guide from live raw card prices, graded estimates, recent sales, and outlier checks across supported marketplaces. The total set value is the sum of tracked singles with current market prices, while PSA columns show graded-card estimates when enough data is available.

Read the full Guardian Oracle pricing methodology.

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Most Valuable Mystery Booster Playtest Cards 2021 Cards

#	Card	Rarity	Raw	PSA 9	PSA 10	30d
102	Slivdrazi Monstrosity	rare	$13.11	N/A	N/A	-18.5%
59	Planequake	Rare	$5.69	N/A	N/A	-6.0%
99	Sliv-Mizzet, Hivemind	rare	$2.47	N/A	N/A	-9.2%
107	Mirrored Lotus	Rare	$1.78	N/A	N/A	+1.7%
2	Banding Sliver	Rare	$1.21	N/A	N/A	-10.4%
45	One with Death	Rare	$1.18	N/A	N/A	-6.3%
23	Innocuous Insect	Rare	$0.89	N/A	N/A	+8.0%
96	Personal Decoy	Rare	$0.68	N/A	N/A	0.0%
118	Noxious Bayou	Rare	$0.53	N/A	N/A	+3.9%
66	Tibalt the Chaotic	Rare	$0.50	N/A	N/A	+2.0%
70	Whammy Burn	Rare	$0.49	N/A	N/A	+12.5%
31	Time Sidewalk	Rare	$0.48	N/A	N/A	0.0%
121	Waste Land	Rare	$0.48	N/A	N/A	0.0%
93	How to Keep an Izzet Mage Busy	rare	$0.47	N/A	N/A	-2.1%
84	Soulmates	Rare	$0.46	N/A	N/A	0.0%
42	Frogkin Kidnapper	Rare	$0.43	N/A	N/A	+4.9%
113	Barry's Land	Rare	$0.40	N/A	N/A	0.0%
75	Generated Horizons	Rare	$0.40	N/A	N/A	0.0%
80	Krosan Adaptation	Rare	$0.38	N/A	N/A	-5.0%
55	Impatient Iguana	Rare	$0.37	N/A	N/A	+8.8%
65	Throat Wolf	Rare	$0.37	N/A	N/A	0.0%
35	Bone Rattler	Rare	$0.37	N/A	N/A	+2.8%
30	The Grand Tour	Rare	$0.37	N/A	N/A	-2.6%
71	Bear with Set's Mechanic	Rare	$0.36	N/A	N/A	0.0%
77	Growth Charm	Rare	$0.35	N/A	N/A	+2.9%
94	Kaya, Ghost Haunter	Rare	$0.35	N/A	N/A	0.0%
116	Gold Mine	Rare	$0.34	N/A	N/A	0.0%
12	Scaled Destruction	Rare	$0.34	N/A	N/A	-2.9%
106	Lantern of Undersight	Rare	$0.33	N/A	N/A	-10.8%
81	Maro's Gone Nuts	Rare	$0.33	N/A	N/A	-2.9%
87	Abian, Luvion Usurper	Rare	$0.32	N/A	N/A	0.0%
88	Bind // Liberate	Rare	$0.31	N/A	N/A	+6.9%
86	A Good Thing	Rare	$0.31	N/A	N/A	0.0%
67	Transcantation	Rare	$0.31	N/A	N/A	0.0%
108	Pithing Spyglass	Rare	$0.31	N/A	N/A	0.0%
56	Lazier Goblin	rare	$0.30	N/A	N/A	0.0%
32	Truth or Dare	Rare	$0.30	N/A	N/A	+3.5%
49	Underdark Beholder	Rare	$0.30	N/A	N/A	-3.2%
53	Bombardment	Rare	$0.29	N/A	N/A	0.0%
79	Interplanar Brushwagg	Rare	$0.29	N/A	N/A	0.0%
6	Frontier Explorer	Rare	$0.29	N/A	N/A	-12.1%
24	Khod, Etlan Shiis Envoy	Rare	$0.29	N/A	N/A	+7.4%
114	Domesticated Watercourse	Rare	$0.28	N/A	N/A	0.0%
26	Loopy Lobster	Rare	$0.27	N/A	N/A	-12.9%
22	Form of the Mulldrifter	Rare	$0.27	N/A	N/A	0.0%
112	Aggressive Crag	Rare	$0.27	N/A	N/A	0.0%
117	Jasconian Isle	Rare	$0.27	N/A	N/A	0.0%
11	Sarah's Wings	rare	$0.27	N/A	N/A	-10.0%
104	Zyym, Mesmeric Lord	Rare	$0.27	N/A	N/A	+8.0%
111	Weaponized Scrap	Rare	$0.26	N/A	N/A	+8.3%
58	Mana Abundance	Rare	$0.26	N/A	N/A	0.0%
98	Seek Bolas's Counsel	Rare	$0.26	N/A	N/A	0.0%
10	Ruff, Underdog Champ	Rare	$0.26	N/A	N/A	-4.3%
115	Enchanted Prairie	rare	$0.26	N/A	N/A	0.0%
51	Xyru Specter	Rare	$0.25	N/A	N/A	0.0%
69	Geometric Weird	Rare	$0.25	N/A	N/A	0.0%
13	Stack of Paperwork	Rare	$0.25	N/A	N/A	-4.8%
20	Do-Over	Rare	$0.25	N/A	N/A	0.0%
78	Inspirational Antelope	Rare	$0.25	N/A	N/A	0.0%
103	Wrath of Sod	Rare	$0.24	N/A	N/A	0.0%
38	Chimney Goyf	Rare	$0.24	N/A	N/A	0.0%
82	Patient Turtle	Rare	$0.24	N/A	N/A	-4.0%
64	Siege Elemental	Rare	$0.24	N/A	N/A	+9.1%
85	Vazal, the Compleat	Rare	$0.24	N/A	N/A	0.0%
29	Squidnapper	Rare	$0.24	N/A	N/A	0.0%
16	Animate Spell	Rare	$0.24	N/A	N/A	0.0%
90	Evil Boros Charm	Rare	$0.24	N/A	N/A	-4.0%
100	Smelt // Herd // Saw	Rare	$0.23	N/A	N/A	0.0%
28	Recycla-bird	Rare	$0.23	N/A	N/A	0.0%
83	Plane-Merge Elf	Rare	$0.23	N/A	N/A	+9.5%
3	Baneslayer Aspirant	Rare	$0.23	N/A	N/A	0.0%
61	Queue of Beetles	Rare	$0.23	N/A	N/A	0.0%
76	Gorilla Tactics	Rare	$0.22	N/A	N/A	+4.8%
63	Seasoned Weaponsmith	Rare	$0.22	N/A	N/A	0.0%
95	Louvaq, the Aberrant	Rare	$0.22	N/A	N/A	0.0%
50	Witty Demon	Rare	$0.22	N/A	N/A	-8.3%
54	High Troller	Rare	$0.22	N/A	N/A	0.0%
52	Yawgmoth's Testament	Rare	$0.22	N/A	N/A	0.0%
41	Everlasting Lich	rare	$0.22	N/A	N/A	0.0%
97	Pick Your Poison	Rare	$0.22	N/A	N/A	+4.8%
8	Metagamer	Rare	$0.22	N/A	N/A	0.0%
119	Rift	Rare	$0.22	N/A	N/A	0.0%
109	Puresteel Angel	Rare	$0.21	N/A	N/A	+5.0%
57	Lightning Colt	Rare	$0.21	N/A	N/A	+5.0%
120	Taiga Stadium	Rare	$0.21	N/A	N/A	0.0%
92	Graveyard Dig	Rare	$0.21	N/A	N/A	0.0%
62	Red Herring	Rare	$0.21	N/A	N/A	0.0%
43	Gunk Slug	Rare	$0.21	N/A	N/A	0.0%
46	Spellmorph Raise Dead	Rare	$0.21	N/A	N/A	+5.0%
19	Control Win Condition	Rare	$0.20	N/A	N/A	0.0%
91	Golgari Death Swarm	Rare	$0.20	N/A	N/A	0.0%
60	Problematic Volcano	Rare	$0.20	N/A	N/A	0.0%
47	Sunimret	Rare	$0.20	N/A	N/A	+5.3%
14	Wizened Arbiter	Rare	$0.20	N/A	N/A	0.0%
73	Experiment Five	Rare	$0.19	N/A	N/A	-5.0%
72	Domesticated Mammoth	Rare	$0.19	N/A	N/A	0.0%
15	You're in Command	Rare	$0.19	N/A	N/A	0.0%
34	Blood Poet	Rare	$0.19	N/A	N/A	0.0%
9	Priority Avenger	Rare	$0.19	N/A	N/A	-4.8%
33	Visitor from Planet Q	Rare	$0.19	N/A	N/A	0.0%

Biggest 30-Day Movers in Mystery Booster Playtest Cards 2021

Card	Rarity	Raw Price	30d Change	PSA 10
Slivdrazi Monstrosity	rare	$13.11	-18.5%	N/A
Loopy Lobster	Rare	$0.27	-12.9%	N/A
Whammy Burn	Rare	$0.49	+12.5%	N/A
Frontier Explorer	Rare	$0.29	-12.1%	N/A
Enchantmentize	Rare	$0.19	+11.8%	N/A
Lantern of Undersight	Rare	$0.33	-10.8%	N/A
Banding Sliver	Rare	$1.21	-10.4%	N/A
Sarah's Wings	rare	$0.27	-10.0%	N/A
Memory Bank	Rare	$0.18	-10.0%	N/A
Plane-Merge Elf	Rare	$0.23	+9.5%	N/A
Sliv-Mizzet, Hivemind	rare	$2.47	-9.2%	N/A
Siege Elemental	Rare	$0.24	+9.1%	N/A
Impatient Iguana	Rare	$0.37	+8.8%	N/A
Witty Demon	Rare	$0.22	-8.3%	N/A
Weaponized Scrap	Rare	$0.26	+8.3%	N/A
Innocuous Insect	Rare	$0.89	+8.0%	N/A
Zyym, Mesmeric Lord	Rare	$0.27	+8.0%	N/A
Learned Learner	Rare	$0.14	+7.7%	N/A
Khod, Etlan Shiis Envoy	Rare	$0.29	+7.4%	N/A
Bind // Liberate	Rare	$0.31	+6.9%	N/A

Cheapest Mystery Booster Playtest Cards 2021 Cards

Card	#	Rarity	Raw Price	PSA 10
Learned Learner	25	Rare	$0.14	N/A
Swarm of Locus	48	Rare	$0.15	N/A
Chronobot	105	Rare	$0.16	N/A
Cyclopean Titan	40	Rare	$0.16	N/A
Buried Ogre	36	Rare	$0.16	N/A
Ral's Vanguard	1	Rare	$0.16	N/A
Frenemy of the Guildpact	74	Rare	$0.17	N/A
Largepox	44	rare	$0.17	N/A
Trial and Error	68	Rare	$0.17	N/A
Enroll in the Coalition	4	rare	$0.17	N/A
Bucket List	89	Rare	$0.17	N/A
Corrupted Key	39	Rare	$0.18	N/A
Unicycle	110	Rare	$0.18	N/A
Biting Remark	17	Rare	$0.18	N/A
Memory Bank	27	Rare	$0.18	N/A
Five Kids in a Trenchcoat	5	Rare	$0.18	N/A
Command the Chaff	18	Rare	$0.18	N/A
Start // Fire	101	Rare	$0.18	N/A
Enchantmentize	21	Rare	$0.19	N/A
Visitor from Planet Q	33	Rare	$0.19	N/A

Mystery Booster Playtest Cards 2021 Checklist by Number

#	Card	Raw Price	PSA 10
2	Banding Sliver	$1.21	N/A
3	Baneslayer Aspirant	$0.23	N/A
6	Frontier Explorer	$0.29	N/A
8	Metagamer	$0.22	N/A
9	Priority Avenger	$0.19	N/A
10	Ruff, Underdog Champ	$0.26	N/A
11	Sarah's Wings	$0.27	N/A
12	Scaled Destruction	$0.34	N/A
13	Stack of Paperwork	$0.25	N/A
14	Wizened Arbiter	$0.20	N/A
15	You're in Command	$0.19	N/A
16	Animate Spell	$0.24	N/A
19	Control Win Condition	$0.20	N/A
20	Do-Over	$0.25	N/A
22	Form of the Mulldrifter	$0.27	N/A
23	Innocuous Insect	$0.89	N/A
24	Khod, Etlan Shiis Envoy	$0.29	N/A
26	Loopy Lobster	$0.27	N/A
28	Recycla-bird	$0.23	N/A
29	Squidnapper	$0.24	N/A
30	The Grand Tour	$0.37	N/A
31	Time Sidewalk	$0.48	N/A
32	Truth or Dare	$0.30	N/A
33	Visitor from Planet Q	$0.19	N/A
34	Blood Poet	$0.19	N/A
35	Bone Rattler	$0.37	N/A
38	Chimney Goyf	$0.24	N/A
41	Everlasting Lich	$0.22	N/A
42	Frogkin Kidnapper	$0.43	N/A
43	Gunk Slug	$0.21	N/A
45	One with Death	$1.18	N/A
46	Spellmorph Raise Dead	$0.21	N/A
47	Sunimret	$0.20	N/A
49	Underdark Beholder	$0.30	N/A
50	Witty Demon	$0.22	N/A
51	Xyru Specter	$0.25	N/A
52	Yawgmoth's Testament	$0.22	N/A
53	Bombardment	$0.29	N/A
54	High Troller	$0.22	N/A
55	Impatient Iguana	$0.37	N/A
56	Lazier Goblin	$0.30	N/A
57	Lightning Colt	$0.21	N/A
58	Mana Abundance	$0.26	N/A
59	Planequake	$5.69	N/A
60	Problematic Volcano	$0.20	N/A
61	Queue of Beetles	$0.23	N/A
62	Red Herring	$0.21	N/A
63	Seasoned Weaponsmith	$0.22	N/A
64	Siege Elemental	$0.24	N/A
65	Throat Wolf	$0.37	N/A

How many cards are in Mystery Booster Playtest Cards 2021?

Mystery Booster Playtest Cards 2021 has 121 cards tracked with a total set value of $56.47. Most valuable: Slivdrazi Monstrosity ($13.11).

What is the most expensive card in Mystery Booster Playtest Cards 2021?

The most expensive Mystery Booster Playtest Cards 2021 card is Slivdrazi Monstrosity at $13.11. The set has 121 cards with a total value of $56.47.

Is Mystery Booster Playtest Cards 2021 a good investment?

Mystery Booster Playtest Cards 2021 contains 121 priced cards worth $56.47 total. The most expensive card is Slivdrazi Monstrosity at $13.11. Check our Magic: The Gathering market movers for current trends.

When was Mystery Booster Playtest Cards 2021 price data last updated?

Mystery Booster Playtest Cards 2021 prices were last updated August 6, 2026. Guardian TCG refreshes card data daily from TCGPlayer, eBay, and CardMarket.

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High-value cards to discover

Internal discovery links for inventory flagged as under-linked (18 URLs).

Mystery Booster Playtest Cards 2021 Price Guide — Card Values & Prices (2026)