Daenerys, Mother of Dragons

When Daenerys, Mother of Dragons enters the battlefield, create three 5/5 red and green
legendary Dragon creature tokens each named
Drogon, Rhaegal and Viserion with flying,
trample and haste onto the battlefield tapped.
When all three of these tokens leave the battlefield, exile Daenerys, Mother of Dragons.
"The world hadn't seen a dragon in centuries until my children were born. I was born to rule, and I will."