Guide of Souls
From Modern Horizons 3 set
Guide of Souls
Creature — Human Cleric
1/2
Whenever another creature you control enters, you gain 1 life and get
(an energy counter).
Whenever you attack, you may pay
. When you do, put two +1/+1 counters and a flying counter on target attacking creature. It becomes an Angel in addition to its other types.