Card Codex

Crystalline Nautilus

Scryfall

2U · Enchantment Creature — Nautilus

Bestow {3}{U}{U} (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached to a creature.) When Crystalline Nautilus becomes the target of a spell or ability, sacrifice it. Enchanted creature gets +4/+4 and has "When this creature becomes the target of a spell or ability, sacrifice it." 4/4

Similar cards

Name	Mana	Type	Text
Rakshasa's Disdain	2U	Instant	Counter target spell unless its controller pays {1} for each card in your graveyard.
Stasis Field	1U	Enchantment — Aura	Enchant creature Enchanted creature has base power and toughness 0/2, has defender, and loses all other abilities.
Electrosiphon	UUR	Instant	Counter target spell. You get an amount of {E} (energy counters) equal to its mana value.
Embiggen	G	Instant	Until end of turn, target non-Brushwagg creature gets +1/+1 for each supertype, card type, and subtype it has.
Relic Axe	2	Artifact — Equipment	When Relic Axe enters the battlefield, attach it to target creature you control. Equipped creature gets +1/+1. If it's a Warrior, it gets +2/+1 instead. Equip {2}
Countervailing Winds	2U	Instant	Counter target spell unless its controller pays {1} for each card in your graveyard. Cycling {2} ({2}, Discard this card: Draw a card.)
Bound in Gold	2W	Enchantment — Aura	Enchant permanent Enchanted permanent can't attack, block, or crew Vehicles, and its activated abilities can't be activated unless they're mana abilities.
Intercessor's Arrest	2W	Enchantment — Aura	Enchant permanent Enchanted permanent can't attack, block, or crew Vehicles. Its activated abilities can't be activated unless they're mana abilities.
Baffling Defenses	1W	Instant	Target creature's base power perpetually becomes 0.
Cytoshape	1GU	Instant	Choose a nonlegendary creature on the battlefield. Target creature becomes a copy of that creature until end of turn.