We mostly believe people will know what they're signing up for in a game with Braids as a commander, and as a card in the 99, it is reasonable and acceptable
Black/Green: Fill the Graveyard (Midrange) The Blue/Black graveyard strategy is patient and deliberate
Those pesky mana rocks are protected though, on an ability that's already limited to dealing with artifacts
Creeping Corrosion and Seeds of Innocence are it though, and while neither is bad, neither is especially great either
That said, X on converge spells allows you to spend the maximum amount of mana on them
Brawl Not Legal Vintage Legal Timeless Not Legal Commander Legal Pauper Not Legal Oathbreaker Legal Penny Not Legal Toolbox Buy This Card Notes and Rules Information for Cavern-Hoard Dragon: Once a player has announced that they are casting Cavern-Hoard Dragon, no player may take actions to try and change the greatest number of artifacts an opponent controls before Cavern-Hoard Dragon's cost is locked in
