Voidgloom Seraph

Haste, vigilance, protection from white
Shield (On every untap step, put shield counters on
this creature until it has 5 shield counters. This
creature cannot take damage until all shield counters
are removed from it. If it would take damage, instead
remove that many shield counters from it.)
Voidgloom Seraph enters the battlefield with one
tier counter.
{3}: Put a tier counter on Voidgloom Seraph.
Voidgloom Seraph gets +3/+3 for every tier
counter on it.