Iskander, The Conqueror

Convoke
Other creatures you control gain +1/+1
If Iskander, The Conqueror is cast using
6 creatures, untap all creatures you control, they
gain +1/+1 and trample until the end of the turn
{g}{w} exile Iskander, The Conqueror, return
2 creatures from the graveyard to their owners
hand