Armix, Filigree Thrasher It can be tricky to gauge the value of partners solo, but Armix, Filigree Thrasher is a fantastic enabler for artifact decks trying to do things with their graveyard
What they do is evolve to something with O counter and an HP value between 990 and 680, because this HP value makes the AI go for the KO more often, even if their attack is about to get countered
The main difference between this build and the more standard Gouki builds is the use of a Sky Striker engine to enable Isolde play
Some of the most powerful cards include Mega Mewtwo EX (BREAKthrough), Charizard VSTAR (Brilliant Stars), Copperajah VMAX (Rebel Clash), Shaymin EX (Roaring Skies), and Arceus VSTAR (Brilliant Stars)
that target loses 700 ATK for each Black Feather Counter removed, and if it does, inflict damage to your opponent equal to the ATK lost by this effect
Weakness: Fire (x2) Resistance: Grass (-30) Retreat: 1 130