D.va

Vigilance
{t}{w}: Prevent all damage from one source to any
target, add one counter to D.va
{t}{u}: Remove 6 counters from D.va, deal 6 damage
to each opponents creatures. Sacrifice D.va.
When D.va is put into a graveyard, create 1/1 Baby
D.va token, with ability "{t} Baby D.va deals 1
damage to any target, at the end of turn remove Baby
D.va token and return D.va from graveyard into the battlefield"