Anodizing Sphere

Nontoken creatures have haste. Damage can’t be prevented.
Anodizing Sphere enters the battlefield with 3 discharge counters on it. At the beginning of each end step, remove one discharge counter from Anodizing Sphere.
As long as Anodizing Sphere has 1 or more discharge counters, creatures that entered the battlefield this turn get +2/+0 and gain trample and “sacrifice this creature at the beginning of the end step”.