Senator Arstrong

Trample
{4}, deal 2 instances of 6 damage to enemy
creatures
{4}, this card becomes indestructible until the end
of the turn, you cannot use this the turn after this
was used
{7}, sacrifice this creature and put metal gear
excelsus on the field, when that card is destroyed
put armstrong back on the field, this card effect
can only be used once per game