RiderKabuto, Divine Lightning

Flash
Dash {1}{w}{r} (You may cast this spell for its dash cost. If you do, it gains haste, and it's returned from the battlefield to its owner's hand at the beginning of the next end step.)
Partner. If you control another Elemental Soldier creature you gain "{3}{w}{r}, {t}, Exert Rider Kabuto: End the turn. Take an extra turn after this one. Lands you control don't untap during your next untap step At the beginning of that turn's end step you lose the game."