There are no rules here so long as the cards in question are legal for your format
Think about it in decks with enrage creatures or damage synergies: suddenly, taking a hit isn't just survivable, it's beneficial
It can also hit pretty hard if you need to kill someone with commander damage
To wit, new adamant cards include bonuses if you spend at least three of a particular color of mana to cast them
This set delivers Final FantasyVII flavour along with all items needed to begin Commander gameplay immediately
4 Judith, Carnage Connoisseur Grants Powerful Keywords to Spells Firesong and Sunspeaker's Mean Aunt Judith, the Scourge Diva was a Rakdos aristocrats player's dream when she was in Standard, and Judith, Carnage Connoisseur offers a similar gift to Rakdos spellslinger players