Rek'Sai, Void Burrower

Rek'Sai enters with a Burrow counter on her.

Unburrow - {7}, remove a Burrow counter from
Rek'Sai: Rek'Sai dels 7 damage to up to seven target creatures, put seven +1/+1 counters on
Rek'Sai.

If Rek'Sai has no Burrow counters on her, she has trample and Annihilator 1