robot cloner

defender
at the beginning of your upkeep create a copy
of this creature, then put X +1 +1 counters on
this creature, where X is the number of creatures you control divided by 10, then create X energy, where X is the amount of creatures you control divided by 3.
grab, thwack and drill, {t}{e}{e}{e}{e}{e}{e}{e}{e}{e}{e}: deal X damage to
target permenant or player, where X is the amount
of creatures you control called robot cloner divided
by 2.