The Essence Accord

Houses you control gain +1/+1 and lose defender. Whenever you regenerate a creature gain 1 life.
At the beginning of your upkeep you may pay {w/b}{g/u}. If you pay green create a 1/1 black skeleton creature token with "{b/g}: Regenerate this creature." If you pay blue create a 0/2 colorless Home artifact creature with defender.
"More unites us then divides us. Together we shall bring order and discipline to this land."