It states: "Once per game"

So does that mean I can Have someone TK ...say Hercules, Up somewhere, Activate Pym Particles, Then Charge grabbing Objects, Flurry(attack 1) from a square away, lunge 2 squares, And flurry(attack 2) from a square away?

I don't see why not.... if it's a question regarding whether this feels like a loophole or not because of TKing someone then turning them into a giant.... well, you do know you can TK [friendly] giants now right?

Yep, you sure can. But you'll have to stay a Giant for the rest of the game. You can't shrink down, since the card is now non-optional.

I got a chance to play this card with Quicksilver before the erratum on this feat, so even though I couldn't shrink down to pee-wee size to get the +1 DV against Ranged Attacks, I could Cancel the feat, and shrink down to normal size, so the Black Knight could fly me away, then when I was dropped off, I'd grow big again. Or I'd cancel the feat so as not to be targeting by ranged attacks, hiding behind my friendlies or other characters.

But also remember, you can TK friendly Giants. You just can't TK opposing Giants.

It depends on what you mean by "a square away" in there. If you mean that you'd have a square between you, then it wouldn't work (because you can't Flurry and hit someone not adjacent to you).

I don't think that's what you mean, but I can't figure out where else the giant ability would come in as you don't mention ignoring hindering or figures.

yeah i meant adjacent. Thanks for the help.