M:tG card similarity search
2W · Artifact
When Idol of Endurance enters the battlefield, exile all creature cards with mana value 3 or less from your graveyard until Idol of Endurance leaves the battlefield. {1}{W}, {T}: Until end of turn, you may cast a creature spell from among cards exiled with Idol of Endurance without paying its mana cost.
| Name | Mana | Type | Text |
|---|---|---|---|
| Doubling Cube | 2 | Artifact | {3}, {T}: Double the amount of each type of unspent mana you have. |
| Brain in a Jar | 2 | Artifact | {1}, {T}: Put a charge counter on Brain in a Jar, then you may cast an instant or sorcery spell with mana value equal to the number of charge counters on Brain in a Jar from your hand without paying its mana cost. {3}, {T}, Remove X charge counters from Brain in a Jar: Scry X. |
| Catalyst Stone | 2 | Artifact | Flashback costs you pay cost up to {2} less. Flashback costs your opponents pay cost {2} more. |
| Gaea's Will | Sorcery | Suspend 4—{G} Until end of turn, you may play lands and cast spells from your graveyard. If a card would be put into your graveyard from anywhere this turn, exile that card instead. | |
| Parallectric Feedback | 3R | Instant | Parallectric Feedback deals damage to target spell's controller equal to that spell's mana value. |
| Refuse | 3R | Instant | Refuse deals damage to target spell's controller equal to that spell's mana value. |
| Hellhole Rats | 2BR | Creature — Rat | Haste When Hellhole Rats enters the battlefield, target player discards a card. Hellhole Rats deals damage to that player equal to that card's mana value. 2/2 |
| Drought | 2WW | Enchantment | At the beginning of your upkeep, sacrifice Drought unless you pay {W}{W}. Spells cost an additional "Sacrifice a Swamp" to cast for each black mana symbol in their mana costs. Activated abilities cost an additional "Sacrifice a Swamp" to activate for each black mana symbol in their activation costs. |
| Serum Snare | 1U | Instant | Return target nonland permanent to its owner's hand. If that permanent had mana value 3 or less, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.) |
| Outbreak | 3B | Sorcery | You may discard a Swamp card rather than pay this spell's mana cost. Choose a creature type. All creatures of that type get -1/-1 until end of turn. |