The Sword of Supreme Knights

This card cannot be countered and cannot
be exiled or put in the graveyard by any means.
Equip {0}
Target creature gets +8/+5, double strike,
trample, vigilance, lifelink, and flame touch
(a target that was hit by a creature with flame
touch 3 times takes 15 damage or if it is a player,
they lose the game)