Maikau, Last Standing

Haste, exalted, first strike, martyr
Battalion - Whenever Maikau and at least two
other creatures attack, untap Maikau. After this
combat phase, there is an additional combat
phase. Only Maikau can attack during that phase.
{2}{w}{g}: You may put an equipment card from
your hand onto the battlefield attached to
Maikau.