Flying, vigilance Each other Angel you control enters with an additional +1/+1 counter on it for each Angel you already control. {T}: Add {W}. Spend this mana only to cast an Angel spell.

Equipped creature gets +1/+1 for each counter on it. Equipped permanent isn't a planeswalker and is a creature in addition to its other types. (Loyalty abilities can still be activated.) Equip planeswalker {1} Equip {3}