Mental domination and groot

[aelith]

Can rocket use bodyguard from groot to deflect the attack of groot itself using mental domination, thus groot ends up hitting himself?

[Thoras]

Yes, if an allied Groot is chosen for the Mental Domination card and Rocket Raccoon is then attacked by the attack generated from that, he can use personal bodyguard to change the target of the attack to Groot.

Note that it is not Groot performing the attack during mental domination though. The character that played the card is performing the attack, the chosen character is only used for the purposes of measuring range and line of sight.