Mega Fortress Whale – Yu-Gi-Oh! Card of the Day
Mega Fortress Whale - #LED9-EN016
If "Umi" is on the field: You can activate this effect; your WATER monsters can attack directly this turn. During...
A Legendary Ocean – Yu-Gi-Oh! Throwback Thursday (2003)
A Legendary Ocean - #LDS1-EN029
(This card's name is always treated as "Umi".) - All WATER monsters on the field gain 200 ATK/DEF. Reduce the...
Sea Stealth II – Yu-Gi-Oh! Card of the Day
Sea Stealth II - #LED9-EN021
This card's name becomes "Umi" while on the field or in the GY. Your opponent cannot target WATER monsters you...
Ocean Dragon Lord – Kairyu-Shin – Yu-Gi-Oh! Card of the Day
Ocean Dragon Lord - Kairyu-Shin - #LED9-EN017
While "Umi" is on the field, each player can only control 1 face-up non-WATER monster. (If a player...
Electric Jellyfish – Yu-Gi-Oh! Card of the Day
Electric Jellyfish - #LED9-EN019
You can send 1 "Umi" from your hand, Deck, or face-up field to the GY; Special Summon 1 WATER monster from...
Libromancer Fireburst – Yu-Gi-Oh! Card of the Day
Libromancer Fireburst - #DIFO-EN087
You can Ritual Summon this card with a "Libromancer" card. If this card was Ritual Summoned by using a monster(s) on...
Djinn Releaser of Rituals – Yu-Gi-Oh! Throwback Thursday (2009)
Djinn Releaser of Rituals - #THSF-EN036
When you Ritual Summon a monster, you can banish this card from your Graveyard as 1 of the monsters...
Libromancer Displaced – Yu-Gi-Oh! Card of the Day
Libromancer Displaced - #DIFO-EN010
Target 1 "Libromancer" monster you control and 1 monster your opponent controls; return your monster to the hand, and if you...
Libromancer Realized – Yu-Gi-Oh! Card of the Day
Libromancer Realized - #DIFO-EN088
You can reveal 1 "Libromancer" Ritual Monster in your hand: Special Summon 1 "Fire Token" (Cyberse/FIRE/ATK 0/DEF 0) with the same...
Libromancer Fire – Yu-Gi-Oh! Card of the Day
Libromancer Fire - #DIFO-EN000
You can reveal 1 Ritual Monster in your hand: Special Summon this card from your hand. If this card is Special...