pokemon card reuniclus (171/162) – PokeGuard Captured in a crystal Reuniclus - 212 - SV:

Decayed is a hyper-specific mechanic from Innistrad: Midnight Hunt , and appears solely on Zombie creature tokens

Despite the effect of transforming Battle being a triggered ability , its controller exiles the permanent and then casts it without paying the mana cost , opening up space to interact with Battle on the stack with Make Disappear, or other counterspells, or even to bounce them on the stack, with Venser, Shaper Savant and the like

If you copy a permanent spell, that copy becomes a token on the battlefield, but that's not the same as creating a token

Jace can only really allow you to pull away from your opponent if the board is empty or static