RiderBlackRX, Child of the Sun

Whenever Rider Black RX enters the battlefield,
create a colorless Legendary Artifact equipment
named Revolcane.
If you control another Elemental Soldier creature
you gain "{w}{r}{g}, {t}: Tap target creature you
control and target creature of an opponent's
choice they control. Those creatures fight each
other. If a creature dealt damage this way would
die this turn, exile it instead."