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This card's name becomes "Umi" while in the Monster Zone. You can only use each of the following effects of "Leviathan of Atlantis - Daedalus" once per turn. If you control "Atlantis, City of the Sea Dragon" or "Umi": You can Special Summon this card from your hand. You can send up to 3 face-up "Umi" you control to the GY; add that many cards that mention "Atlantis, City of the Sea Dragon" from your Deck to your hand, except Level 7 monsters, then you can send 1 card on the field to the GY.