And then Terra re-enters the battlefield transformed back, and should draw you another card
When he transforms, you get a permanent emblem with his life-draining ability
This means the new overload cost would be two-generic, two-blue, and one-red increased from one-generic
Charms tend to have effects too small to justify a card by themselves, but having the choice of three of these mini effects are worthy of the card, due to the flexibility
Its one of the few versions of this effect that makes tokens, and that has many synergies with populate or commanders like Brudiclad, Telchor Engineer
If you don't have any other artifacts in play you want to bounce back to your hand, you can always choose to bounce itself since it is an artifact creature