one piece card game mat Playmat Straw Hat CrewUltimate Guards Play One Piece Card Game Official

You need to make sure that you plan out when your cards are being cast and also not flood your deck with massive cards that rely on your Commander, because you may not always have Jhoira either

This legendary artifact is a potent mana rock that belongs in basically any black deck

The latter is the Secret Victory Pack, which is adorned with the text Only the victors shall unseal this packet and claim the prize within, or this treasure becomes property of the sea witch Ursula, for all eternity, as you can see below

Keeping Disk mana up in case of emergency is easy

I think that this was a bad choice but no, old werewolves were not errata'd to work with the new mechanic