Hmm. This may seem like an odd idea, but what about having it start with a weaker Acceleration (say +1 | -1 a turn) or giving it the ability to Self-Catapult itself at opponents? (like a Body Slam maneuver) That could increase it's damage potential in lategame/stall situations, whereas Charger and Armagio/ Flying Titan + Catapult would be a bit more speed or OTK based.