Aela, Kaladesh Avenger

{t}{u/r}
Destroy target permanent
{t}{e}{e}{e}
Put three blade counters on Aela, Kaladesh Avenger
When Aela, Kaladesh Avenger enters the battlefield you get{e}{e}{e}{e}{e}{e}{e}{e}
Remove {x} blade counters from Aela, Aela gets {x} +1+1 counters