Brood Sliver

Most Slivers hand a keyword to the whole team; this one hands them a snowball. The trigger fires off any Sliver's combat damage, so the more bodies connect, the more 1/1 tokens arrive, and those tokens are themselves Slivers that swing for the same trigger next turn. That feedback loop is green's contribution to a tribe that historically lived in white and blue for the cheap, evasive, keyword-stacking pieces: green's job is to widen the board and convert connections into more attackers. The cost is the friction. Five mana buys a 3/3 with a payoff that does nothing the turn it lands, in a deck that wants to be ahead on the board before it casts a five-drop. It needs you to already be winning the damage race, then turns a small lead into an avalanche. The generation also leans on the rest of the tribe to matter: a lone Brood Sliver makes one token per swing, while a board sharing first strike, evasion, or pumps from other Slivers turns each successful attack into compounding fodder. It is the engine piece of the green Sliver plan, built to reward a developed board rather than to develop one.