The Iron Throne

Equip only to a nontoken creature.
Equipped creature has "{t}: Add {2} to
your mana pool and put a +1/+1 counter
on each creature you control.
Equip {5}
The Iron throne is indestructible and you may
not unequip it from a creature.
If a player who controls The Iron Throne dies,
the player who killed him or her gains control
of The Iron Throne.