Slushy (AP02-EN007) - Astral Pack 2 Unlimited

When this card is Normal Summoned: You can send 1 "Slushy" from your Deck to the Graveyard. If you have 3 copies of "Slushy" total, either banished and/or in your Graveyard (combined): You can banish this card from your Graveyard to target 1 Level 5 or higher Sea Serpent-Type monster in your Graveyard; Special Summon that target. You can only use the Special Summoning effect of "Slushy" once per turn.