mega charizard x pokemon card Amazon.com: - Mega-Charizard-EX (108) - XY Flashfire and this attack does 90 damage for each card you discarded in this way.) MEGA Charizard-EX 108/106 - Pokémon

The important line is at the bottom there, the third ability: 4, T: Copy target permanent spell you control (the copy becomes a token.) This might not be new new rules it might be that this was a lurking clause in the comprehensive rules at some point, not brought forward or presented obviously in some rules card or whatever

Such is the power of interacting with your opponent without spending mana

Then, before damage is dealt, you use a spelllet's say Twiddle, to keep with our old card themeto tap your opponent's War Mammoth

You can exile the crafted card after craft resolves and the transformed permanent enters play

Interestingly enough, the regular version of Ojer Taq is more valuable than the showcase version