Arthur, King of the Britains

When Arthur, King of the Britains enters the battlefield, attach all equipments on the
battlefield to it. It gets +1/+1 for each
equipment attached to it.
When Arthur, King of the Britains deals combat damage to a player, Convene 1 (Search your
library for a Knight of the Round Table and you may
pay {2}, if you do, it goes onto the battlefield, otherwise,
it goes to your hand).