Show: All formats Goat Edison
"Deepsea Warrior" does not gain any ATK or DEF bonuses from the effect of "Umi."
If you take control of your opponent's face-down "Deepsea Warrior" with "Change of Heart" while "Umi" is face-up on the field, when it is flipped face-up it is immediately returned to your opponent.
If a face-down "Deepsea Warrior" is taken control of by "Change of Heart" and flipped while "Umi" is face-up on the field, "Deepsea Warrior" will immediately return to the original controller's control.
If you Special Summon "Deepsea Warrior" with "Premature Burial", when "Premature Burial" is destroyed while "Umi" is face-up on the field "Deepsea Warrior" is not destroyed.
If a Spell Card is activated that would destroy a face-up "Umi" and a face-up "Deepsea Warrior" simultaneously, "Umi" is destroyed but "Deepsea Warrior" is not.
If your opponent has "Messenger of Peace" or "Swords of Revealing Light" face-up on their side of the field, "Deepsea Warrior" can attack if "Umi" is face-up on the field. If your opponent has "Toll", you do not pay. If your opponent has "Gravekeeper's Servant", you do not send a card from the top of your Deck to your GY.
If "Deepsea Warrior" is equipped with "Ring of Magnetism" while "Umi" is face-up on the field, the effect of "Ring of Magnetism" is not applied.
If your opponent controls a monster equipped with "Ring of Magnetism" and another monster, you can attack the other monster with "Deepsea Warrior" if "Umi" is face-up on the field.
If your opponent has "The Dark Door" face-up on their side of the field, you can attack with one of your monsters and then attack with "Deepsea Warrior" if "Umi" is face-up on the field.
If you control your opponent's "Deepsea Warrior" with "Snatch Steal" and "Umi" is activated, "Deepsea Warrior" returns to your opponent. During your opponent's Standby Phases they will still gain 1000 Life Points.