Enchantment

Veiled Serpent

Veiled Serpent trading card
Enchantment2 exact printings

When an opponent casts a spell, if this permanent is an enchantment, it becomes a 4/4 Serpent creature with "This creature can't attack unless defending player controls an Island." Cycling {2} ({2}, Discard this card: Draw a card.)

From Magic: The Gathering.

Exact printings

Open the interactive version on https://mythscribe.cloud/app/tcg/cards/cms6o69sm3kvdpb1hge5dbmyd.