Dragonscaler Flight Path (HNT143)

Instant — [3 Resources], destroy this: Target Draconic attack gets go again. If it's a weapon or ally attack, you may attack with it an additional time this turn. This ability costs [1 Resource] less to activate for each Draconic chain link you control.
Battleworn (When the combat chain closes, if this defended, put a -1 counter on it.)