Arbiter

Flying, Energy 5, Shield 2
While attacking or blocking, other attacking or blocking creatures you control gain cloaked.
{e}{e}{e} : On your turn after blockers are declared,
tap untapped creatures you control with
combined power 8 or less and put them in
combat. Another declare blockers phase follows.
{e}{e}, {t} : Exile up to 2 target attacking or
blocking creatures. Return those creatures to
their owners' control at the beginning of
their owner's next upkeep.