Common Bond

Two identical lines of text, and the repetition is the whole design. Splitting the two counters into separate target instructions is what gives this its flexibility: stack both on one creature for a +2/+2, or spread one each across two attackers to widen the board the turn it matters. Instant speed does the heavy lifting here, turning what would be a flat sorcery-speed pump into a combat trick that can survive the blocking step, force a bad block, or lift two creatures out of damage range from the same removal spell. Green-white has a long tradition of cheap counter accumulation, and this sits in the workhorse tier of that lineage: not a payoff itself, but the kind of card that feeds the payoffs, every counter feeding something that cares how many sit on the battlefield. The cost is the limiter. Three mana for two counters is a fair rate, not a generous one, so the card earns its slot in builds that convert raw counters into something larger than the counters themselves.