Syphren, The Endless Hunger

Soul Bound - Shera (Syphren, The Endless Hunger
can only be equipped to a Shera Creature)
Equipped creature gets +1/+1 for the next 3
turns for each 1 damage it dealt. Equipped
creature must attack each combat if able unless
you pay {1}{b}{g}.
{3}{b}{g}, Equipped creature deals 5 damage
to any target.
Equip {5}