Mold Adder

A color-hoser pointed at a specific kind of opponent: not the old style that hated mana production, but one that grows off the act of casting. The trigger keys on colors rather than card types, which turns a 1/1 into a barometer aimed squarely at control and reanimator strategies. Every counterspell, every removal spell, every black tutor an opponent reaches for feeds another counter, and a speed bump becomes a real clock the deeper they commit to their plan. The "you may" clause only makes the trigger optional; the counters themselves are permanent the way every +1/+1 counter is, so the asymmetry compounds in one direction. It does precisely nothing against a green or red opponent with no blue or black spells to cast, and it suffocates anyone who wants to durdle in the colors it punishes. That split is the whole design: a creature that idles against half the field and scales exactly with how committed the other half is to the strategies it was built to oppose. Its growth is entirely a function of the opponent's deck, which makes it a strange kind of threat, one whose size is decided across the table rather than on your own side of it.