M:tG card similarity search
1R · Creature — Goblin Rogue Wizard
When Construction Arsonist enters the battlefield, you may choose an instant or sorcery card in your hand. If you do, that card perpetually incorporates {R} and gains "When you cast this spell, it deals 2 damage to each opponent." Whenever you cast a multicolored spell, Construction Arsonist gets +1/+1 until end of turn for each of that spell's colors. 2/2
| Name | Mana | Type | Text |
|---|---|---|---|
| Sin Collector | 1WB | Creature — Human Cleric | When Sin Collector enters the battlefield, target opponent reveals their hand. You choose an instant or sorcery card from it and exile that card. 2/1 |
| Voracious Reader | Creature — Eldrazi Homunculus | Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.) Instant and sorcery spells you cast cost {1} less to cast. 3/4 | |
| Livaan, Cultist of Tiamat | 2R | Legendary Creature — Dragon Shaman | Whenever you cast a noncreature spell, target creature gets +X/+0 until end of turn, where X is that spell's mana value. Choose a Background (You can have a Background as a second commander.) 1/3 |
| Cankerous Thirst | 3B/G | Instant | If {B} was spent to cast this spell, you may have target creature get -3/-3 until end of turn. If {G} was spent to cast this spell, you may have target creature get +3/+3 until end of turn. (Do both if {B}{G} was spent.) |
| Kalamax, the Stormsire | 1GUR | Legendary Creature — Elemental Dinosaur | Whenever you cast your first instant spell each turn, if Kalamax, the Stormsire is tapped, copy that spell. You may choose new targets for the copy. Whenever you copy an instant spell, put a +1/+1 counter on Kalamax. 4/4 |
| Dosan the Falling Leaf | 1GG | Legendary Creature — Human Monk | Players can cast spells only during their own turns. 2/2 |
| Cruel Witness | 2UU | Creature — Bird Horror | Flying Whenever you cast a noncreature spell, surveil 1. (Look at the top card of your library. You may put that card into your graveyard.) 3/3 |
| Slaying Fire | 2R | Instant | Slaying Fire deals 3 damage to any target. Adamant — If at least three red mana was spent to cast this spell, it deals 4 damage instead. |
| Unyaro Griffin | 3W | Creature — Griffin | Flying Sacrifice Unyaro Griffin: Counter target red instant or sorcery spell. 2/2 |
| Sedgemoor Witch | 2B | Creature — Human Warlock | Menace Ward—Pay 3 life. (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays 3 life.) Magecraft — Whenever you cast or copy an instant or sorcery spell, create a 1/1 black and green Pest creature token with "When this creature dies, you gain 1 life." 3/2 |