Hello you Pokémon players! While opening packs, I discovered a (probably?) unknown combo in the Expanded Format.
Here is the deck list, then I will show you the mechanic:
Pokémon (17)
4 Cobalion (Steam Siege)
4 Steelix (Steam Siege)
3 Magearna EX (Steam Siege)
2 Dhelmise (SM Gaurdians...