Young Rhaegal, the Wise

Flying
{r}: This creature gets +1/+0 until end of turn.
At the beginning of your end step, if you control creatures named Young Drogon, the Strong and
Young Viserion, the Proud, creatures you control
get +1/+1 until your next end step.
"The green one shall be Rhaegal, for my valiant
brother who died on the green banks of the Trident."