Sporeweb Weaver

A wall that inverts the usual arithmetic of trading into a blocker. The 1/4 reach body reads like a hundred defensive Spiders before it, but the trigger changes what attacking through it means: whenever it is dealt damage, its controller gains a life and adds a 1/1 Saproling. Note the shape of that trigger. It keys off the damage event, not the amount, so a lone attacker dealing seven produces exactly one life and one token, no more than a single point would. Grind through the Weaver in combat and the reward is one-sided: the aggressor spent an attack step to hand its opponent a life point and a fresh chump, while getting nothing back. But the trigger has no once-per-turn cap, which is where the design opens up. A controller with pingers, fight effects, or a damage-based sweeper can deal the Weaver damage on their own terms and cash the trigger repeatedly, turning a defensive anchor into a token-and-life engine that runs on friendly damage rather than enemy attacks. The hexproof-from-blue clause is a pointed piece of color asymmetry, aimed at the archetype that most wants to bounce or steal a defensive piece rather than fight through it, while leaving red, black, and white free to answer the Spider with ordinary removal so it never locks the board. Ignore it and it costs the attacker nothing; engage with it, from either side, and it starts paying out.