Every other timing rule for casting spells still applies: If the mayhem card is an instant, you can cast it any time you have priority that turn, but if it's a creature you can only cast it at sorcery speed (unless another effect gives it flash)
Arven provided most decks a crucial way to set up, while Electric Generator was the lynchpin of Miraidon decks giving birth to the saying You live or die by the Generators. Being the first set of this generation, the Trainer cards had to be decent
In Commander, Bitterblossom tends to see play mainly in Aristocrats decks, as a way to generate extra sacrifice fodder
Chukov LEGALITIES Standard Future Historic Timeless Gladiator Pioneer Modern Legacy Pauper Vintage Penny Commander Oathbreaker Standardbrawl Brawl Competitivebrawl Alchemy Paupercommander Duel Oldschool Premodern Predh Tlr LANGUAGES DE EN ES FR IT JP PT ZH-CN RULINGS 2024-06-07 If the same mode is chosen more than once, you choose their relative order as you cast the spell
Pauper MTG restricts to common-rarity cards for surprising complexity
Beyond helping Ninja Typal decks get their best threats in play safely, Kaito just does everything a Ninja deck could want