Defender
When Floodgate has flying, sacrifice it.
When Floodgate leaves the battlefield, it deals damage to each nonblue creature without flying equal to half the number of Islands you control, rounded down.
"Quick, Rhirhok—teach me to swim!"
—Makht, goblin casualty
Floodgate’s first triggered ability is a state trigger. It won’t trigger again while the ability is on the stack, but if the ability is countered and Floodgate still has flying, it will trigger again immediately.
Random a card of Magic: The Gathering (MTG), but you can also roll the D20 dice, random a Planeswalker, have fun with the random rules and more.