Chatterstorm

Storm on a Grizzly Bears mana value was always going to enable a combo, but printing that payoff in green rerouted the mechanic's history. Storm finishers had lived almost entirely in red: Grapeshot pointing damage at a face, Empty the Warrens flooding a board with Goblins. Chatterstorm hands the go-wide version of that plan to the color built around cheap creatures and token strategies, where a chain of one-mana spells resolves into a battlefield of Squirrels on the turn you assemble it. The token itself is almost incidental; what matters is that the storm count converts every prior spell into a body, so the same near-infinite loops that once ended on a pile of Goblins now end on a pile of green ones, in a shell that already wants creatures on the table.

The design lever is that each copy makes a 1/1, not a scaling threat, so the deck has to actually generate a large storm count to win: there is no cheap value floor to fizzle into. That ties the card's power to the enabling shell rather than to the spell itself, which is the balance a two-mana storm card needs. The Squirrel type is not decoration either; it hands token-and-tribe archetypes a payoff a Goblin or a generic token would not, quietly collapsing a storm kill and a go-wide creature strategy into the same card.