Skelgo, Riot Leader

As long as you control a full party, other
creatures you control have haste. (Your party
consists of up to one each of Cleric, Rogue, Warrior,
and Wizard.)
{2}{r}{g}: Untap all creatures you control. After
this main phase, there is an additional combat
phase followed by an additional main phase.
Activate this ability only any time you could
cast a sorcery, once per turn, and only if you
control a full party.