Arcbound Ravager [Darksteel]Set: Darksteel Type: Artifact Creature Beast Rarity: Rare Cost: {2} Sacrifice an artifact: Put a +1 +1 counter on Arcbound Ravager. Modular 1 (This creature enters the battlefield with a +1 +1 counter on it. When it dies, you may put its +1 +1 counters on target artifact creature.)

Set: Black & White: Dragons Exalted Type: Fighting Rarity: Ultra Rare Retreat cost: Colorless

As long as you have 7 or more life

we must first have recourse to death

Set: Unhinged Type: Basic Land — Plains Rarity: Common ({T}: Add {W}

Set: Zendikar Expeditions Type: Land — Swamp Mountain Rarity: Mythic ({T}: Add {B} or {R}

Whenever another non-Spirit creature you control dies

Set: World Championships 2017 Type: Grass Rarity: Ultra Rare Retreat cost: Colorless

Set: HeartGold & SoulSilver: Call of Legends Type: Psychic Rarity: Promo

Ob Nixilis Type: Instant Rarity: Common Cost: {G} As an additional cost to cast this spell

Some spellcrafting mistakes go on to become spells of their own

Set: Sun & Moon: Unified Minds Type: Fighting Rarity: Uncommon Retreat cost: Colorless

Set: Fate Reforged Type: Creature — Elemental Rarity: Mythic Cost: {3}{G}{G} At the beginning of your end step