M:tG card similarity search
4UUU · Enchantment
When Day of the Dragons enters the battlefield, exile all creatures you control. Then create that many 5/5 red Dragon creature tokens with flying. When Day of the Dragons leaves the battlefield, sacrifice all Dragons you control. Then return the exiled cards to the battlefield under your control.
| Name | Mana | Type | Text | 
|---|---|---|---|
| Fiend Hunter | 1WW | Creature — Human Cleric | When Fiend Hunter enters the battlefield, you may exile another target creature. When Fiend Hunter leaves the battlefield, return the exiled card to the battlefield under its owner's control. 1/3 | 
| Leonin Relic-Warder | WW | Creature — Cat Cleric | When Leonin Relic-Warder enters the battlefield, you may exile target artifact or enchantment. When Leonin Relic-Warder leaves the battlefield, return the exiled card to the battlefield under its owner's control. 2/2 | 
| Icy Prison | UU | Enchantment | When Icy Prison enters the battlefield, exile target creature. At the beginning of your upkeep, sacrifice Icy Prison unless any player pays {3}. When Icy Prison leaves the battlefield, return the exiled card to the battlefield under its owner's control. | 
| Petradon | 6RR | Creature — Nightmare Beast | When Petradon enters the battlefield, exile two target lands. When Petradon leaves the battlefield, return the exiled cards to the battlefield under their owners' control. {R}: Petradon gets +1/+0 until end of turn. 5/6 | 
| Lathliss, Dragon Queen | 4RR | Legendary Creature — Dragon | Flying Whenever another nontoken Dragon enters the battlefield under your control, create a 5/5 red Dragon creature token with flying. {1}{R}: Dragons you control get +1/+0 until end of turn. 6/6 | 
| Oblivion Ring | 2W | Enchantment | When Oblivion Ring enters the battlefield, exile another target nonland permanent. When Oblivion Ring leaves the battlefield, return the exiled card to the battlefield under its owner's control. | 
| Helvault | 3 | Legendary Artifact | {1}, {T}: Exile target creature you control. {7}, {T}: Exile target creature you don't control. When Helvault is put into a graveyard from the battlefield, return all cards exiled with it to the battlefield under their owners' control. | 
| Prowling Geistcatcher | 3B | Creature — Human Rogue | Whenever you sacrifice another creature, exile it. If that creature was a token, put a +1/+1 counter on Prowling Geistcatcher. When Prowling Geistcatcher leaves the battlefield, return each card exiled with it to the battlefield under your control. 2/4 | 
| Food Coma | 3W | Enchantment | When Food Coma enters the battlefield, exile target creature an opponent controls until Food Coma leaves the battlefield. Create a Food token. (It's an artifact with "{2}, {T}, Sacrifice this artifact: You gain 3 life.") | 
| Mysterious Limousine | 3WW | Artifact — Vehicle | Whenever Mysterious Limousine enters the battlefield or attacks, exile up to one other target creature until Mysterious Limousine leaves the battlefield. If a creature is put into exile this way, return each other card exiled with Mysterious Limousine to the battlefield under its owner's control. Crew 2 4/4 |