M:tG card similarity search
3UU · Instant
Counter target artifact or creature spell. Discover X, where X is that spell's mana value. (Exile cards from the top of your library until you exile a nonland card with that mana value or less. Cast it without paying its mana cost or put it into your hand. Put the rest on the bottom in a random order.)
| Name | Mana | Type | Text |
|---|---|---|---|
| Crash | 2R | Instant | You may sacrifice a Mountain rather than pay this spell's mana cost. Destroy target artifact. |
| Firemind's Foresight | 5UR | Instant | Search your library for an instant card with mana value 3, reveal it, and put it into your hand. Then repeat this process for instant cards with mana values 2 and 1. Then shuffle. |
| Mystical Dispute | 2U | Instant | This spell costs {2} less to cast if it targets a blue spell. Counter target spell unless its controller pays {3}. |
| Efficient Construction | 3U | Enchantment | Whenever you cast an artifact spell, create a 1/1 colorless Thopter artifact creature token with flying. |
| Hydra Broodmaster | 4GG | Creature — Hydra | {X}{X}{G}: Monstrosity X. (If this creature isn't monstrous, put X +1/+1 counters on it and it becomes monstrous.) When Hydra Broodmaster becomes monstrous, create X X/X green Hydra creature tokens. 7/7 |
| Myr Battlesphere | 7 | Artifact Creature — Myr Construct | When Myr Battlesphere enters the battlefield, create four 1/1 colorless Myr artifact creature tokens. Whenever Myr Battlesphere attacks, you may tap X untapped Myr you control. If you do, Myr Battlesphere gets +X/+0 until end of turn and deals X damage to the player or planeswalker it's attacking. 4/7 |
| Astarion's Thirst | 3B | Instant | Exile target creature. Put X +1/+1 counters on a commander creature you control, where X is the power of the creature exiled this way. |
| Metathran Aerostat | 2UU | Creature — Metathran | Flying {X}{U}: You may put a creature card with mana value X from your hand onto the battlefield. If you do, return Metathran Aerostat to its owner's hand. 2/2 |
| True Polymorph | 4UU | Instant | Target artifact or creature becomes a copy of another target artifact or creature. |
| Out of Air | 2UU | Instant | This spell costs {2} less to cast if it targets a creature spell. Counter target spell. |