There are a few dual-type Pokemon that stand above the rest, not only in terms of their unique typing, but also in terms of Super Effective attacks, same-type attack bonuses, and overall stats
These cards have a wide variety of support cards that make them better, as cards like Tera Orb provide them with consistency that some other decks can't match
An ever-moving swarm of dust engulfs and disorients anything that comes near
This hopefully smooths out the Limited environment, and it has two forms: Basic landcycling on a cycle of common creatures, one for each color (Cloudbound Moogle, Ice Flan, Malboro, Hill Gigas, Balamb T-Rexaur), and they each grab their corresponding basic
Making them illegal would have required changing the rules quite substantially (or banning the entire class of cards), and we dont think they are problematic enough to justify a change
These take effect according to the stack, with the active player having the priority if they play a card that their opponent responds to with an instant effect