M:tG card similarity search
W · Instant
You and target opponent play Seven Questions with the top card of that player's library. If you win, prevent all damage that would be dealt this turn by a source of your choice. (To play Seven Questions, that player looks at the card, then you ask up to six yes-or-no questions about the card that they answer truthfully. You guess the card's name—that's question seven—then the player reveals the card.)
| Name | Mana | Type | Text |
|---|---|---|---|
| Reverse Polarity | WW | Instant | You gain X life, where X is twice the damage dealt to you so far this turn by artifacts. |
| Innocuous Researcher | 3G | Creature — Centaur Detective | Parley — Whenever Innocuous Researcher attacks, each player reveals the top card of their library. For each nonland card revealed this way, you investigate. Then each player draws a card. At the beginning of your end step, you may untap all lands you control. If you do, you can't cast spells until your next turn. 3/4 |
| Roil Spout | 1WU | Sorcery | Put target creature on top of its owner's library. Awaken 4—{4}{W}{U} (If you cast this spell for {4}{W}{U}, also put four +1/+1 counters on target land you control and it becomes a 0/0 Elemental creature with haste. It's still a land.) |
| Pandora's Box | 5 | Artifact | {3}, {T}: Choose a random summon card from all players' decks. For each player, flip a coin. If the flip ends up heads, put a token creature into play and treat it as though an exact copy of the chosen summon card were just played. |
| Spin into Myth | 4U | Instant | Put target creature on top of its owner's library, then fateseal 2. (To fateseal 2, look at the top two cards of an opponent's library, then put any number of them on the bottom of that player's library and the rest on top in any order.) |
| Sea of Sand | Plane — Rabiah | Players reveal each card they draw. Whenever a player draws a land card, that player gains 3 life. Whenever a player draws a nonland card, that player loses 3 life. Whenever chaos ensues, put target permanent on top of its owner's library. | |
| Oyaminartok, Polar Werebear | 2GG | Legendary Creature — Giant Bear | Oyaminartok, Polar Werebear has hexproof if it hasn't dealt damage yet. Whenever Oyaminartok deals combat damage to a player, create a Food token. {U}, Sacrifice a Food: Draft a card from Oyaminartok's spellbook. When you do, add {U}{U}{U}. Spend this mana only to cast blue creature spells. 4/5 |
| Trade Secrets | 1UU | Sorcery | Target opponent draws two cards, then you draw up to four cards. That opponent may repeat this process as many times as they choose. |
| Combust | 1R | Instant | This spell can't be countered. Combust deals 5 damage to target white or blue creature. The damage can't be prevented. |
| Nightmare Incursion | 5B | Sorcery | Search target player's library for up to X cards, where X is the number of Swamps you control, and exile them. Then that player shuffles. |