Its based on a sprawling fantasy multiverse storyline, and is very heavy on mechanics the current comprehensive rules fill 228 pages
If youre not using them for nefarious purposes yourself, youre just setting your opponents up with the mana they need to pull wins out of nowhere
Card Set(s) -ROYAL BLOOD- [OP-10] CARD VIEW OP10-084 | C | CHARACTER Sanjuan type, and this Character was played on this turn, K type Leader or Stage cards: If your opponent has 5 or more cards in their hand, your opponent trashes 1 card from their hand
At first glance, this may seem underwhelming, as Toxic does not deal immediate damage
However, it'll only be a gold card of that specific booster mascot (so you couldn't get Palkia ex from a Dialga booster pack)
Myriad like on Blade of Selves and mobilize both give you creature tokens that you're supposed to get rid of at your end step, but with no end step, you keep them