how do you banish cards in yugioh know I don't condone floodgates. is a much better game than floodgates the game. But since they are apart of the game here's 3 you'll want to consider having for The banish-effect from GY can

The cards that make up the Power Nine are as follows: Ancestral Recall Black Lotus Mox Emerald Mox Jet Mox Pearl Mox Ruby Mox Sapphire Timetwister Time Walk Ancestral Recall For the cost of a single blue mana, a target player draws three cards

Conflux | Illustration by Karl Kopinski Multicolor-matters payoffs give you rewards or bonuses specifically for playing multicolored spells or controlling multicolored permanents

Once per turn: You can change the Battle Position of this card

It can protect valuable cards from black discard, and can combine with library shuffling effects to improve your draw (such as Thawing Glaciers, Flooded Strand, or Ramosian Sergeant)