Vastwood Hydra

Most X-cost Hydras arrive as a single fat threat that evaporates the instant it eats a removal spell: the counters die with the body, and the mana invested goes with them. This one refuses to be a single point of failure. The death trigger redistributes its entire counter pile across your other creatures, so the X you paid converts into permanent stats on bodies the original removal could not touch. Point a kill spell at it and you have handed those counters somewhere safer; let it die blocking and the survivors absorb the investment. The catch is that the redistribution rides the stack like any death trigger: it does not resolve until priority passes, so the opponent can respond to the trigger before the counters land, and a well-timed second removal spell can strip the intended recipient off the board first. That timing window cuts both ways. A one-sided sweeper or a removal spell that leaves you no other creatures wastes the redistribution entirely, so the card wants company, not a lone wall of counters. The distinction from the pile of vanilla growth creatures it resembles is not how it enters (small, scaling with mana like any Hydra) but how it leaves. The counters are sticky, surviving the death that usually wipes a counter-creature clean, provided you have somewhere for them to land and the board state to make the trigger stick.