Syong-Jai, the Dawnbreaker

Flying, vigilance
Renown 2 (Whenever this creature deals combat damage to a player, if it isn't renowned, put two +1/+1 counters on it and it becomes renowned.)
Creatures you control with +1/+1 counters on them get +1/+1.
At dawn, the sun fills Syong-Jai's body with unmatched majestic radiance.