Tidus's Brotherhood Sword - Sword of Truth and Justice (SLD-1867) - Secret Lair Drop / Tidus's Brotherhood Sword (Borderless)

Equipped creature gets +2/+2 and has protection from white and from blue.
Whenever equipped creature deals combat damage to a player, put a +1/+1 counter on a creature you control, then proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)
Equip {2}