Monumental Battle

You may have up to X number of creatures you control fight a creature you dont control, create
X Treasure tokens if that creature dies this turn,
if it doesnt create a an artifact token named
"Memorial to Fallen Heroes" with "{3}: A creature
you control has +X/+X until end of turn." and
"If Monumental battle's target's fought creature
dies Memorial to Fallen Heroes is destroyed and
you add {w} to your mana pool."