Tyranid Harridan

The swarm logic is the whole design here: Shrieking Gargoyles turns any connected combat damage, from this flyer or from any Tyranid in the pack, into another evasive body, and every one of those tokens is itself a Tyranid that can trigger the ability again next turn. That is a widening feedback loop dressed as a single trigger. Where most token-generation on a creature keys off a self-limiting condition (its own attack, an activated cost, a death), this one spreads the trigger across the whole board and across colors, so the more the deck attacks, the faster the air fills with 1/1 flyers, and the wider the front becomes on the following swing. Ward is the tax that keeps the engine from being trivially answered before it snowballs: an opponent has to pay to break the loop with targeted removal, and by the time they can afford to, the board is often already producing faster than they can clear it. As a green-blue design it reads less like a beater and more like an escalation clause, rewarding a build that goes wide and evasive rather than tall, and it slots naturally into the Tyranid-tribal framework where every attacker doubling as a token factory compounds instead of merely adding.