Combos Utilizing Floodgate

have lots of islands in play. tap shard to return floodgate to your hand. floodgate does 1 damage to each nonflying nonblue creature for each 2 islands you have in play

play two or more floodgate wait untill you have allot of islands out and then use undo to unsumon them ,or it, to your hand and then use the extra islands to play them right after and do it all over.

have lots of islands in play. cast river to return floodgate to your hand. floodgate does 1 damage to each nonflying nonblue creature for each 2 islands you have in play

have lots of islands in play. spend uuu & tap adept to return floodgate to your hand. floodgate does 1 damage to each nonflying nonblue creature for each 2 islands you have in play

have lots of islands in play. use portal's ability to return floodgate to your hand. floodgate does 1 damage to each nonflying nonblue creature for each 2 islands you have in play

Make Floodgate leave play by phasing it out with Vanishing. Floodgate deals 1 damage for every 2 islands you control to every nonblue non-flying creature.

have lots of islands in play. cast withdraw to return floodgate to your hand. floodgate does 1 damage to each nonflying nonblue creature for each 2 islands you have in play

Make Floodgate leave play by phasing it out with Oubliette. Floodgate deals 1 damage for every 2 islands you control to every nonblue non-flying creature.

remove floodgate from play to your hand when shrieking drake comes into play. all none blue flying creatures take 1 damage for each 2 islands you control

Before floodgate is destroyed at end of turn because it was a flyer, sacrifice it to Life Chisel to gain five life