Pynoss, Lord of Ukenet

Flying, Trample
Whenever Pynoss, Lord of Ukenet deals combat damage to a player, you may pay {b}{r}{g}. If you do, deal X damage to target player or planeswalker, where X is equal to
the number of Dragons you control.
"Strength for Survival, Honour for Life, Pride
for Being."
—Creed of Ukenet