Someone please tell me I am reading the Champion's Blowback ability wrong. Unless I am mistaken, as written I could cast Shrink on a Halfling monk, making him Tiny-sized. Then said Halfling could run/sneak/fly/etc. up to a Great Wyrm (Colossal-sized) and he could "ninja-kick" the dragon using A standard action and spending a use of mythic power to activate Blowback and launch the dragon 10ft per Mythic Tier. Does any one else think that this is a little too powerful, even for a Mythic character?
Although the idea of a 1ft tall halfling launching a 90ft red dragon 100ft into the wall of its own lair is rather amusing.