You get used to it. In fact, if you had known that Loki copied the mindless attack, you could’ve waited and use Loki again against Alfrike. Meanwhile, you didn’t have to be afraid of charging in almost all board, as the enemies (except Tyr) had the mindless attack as well.
Fought him on defense once. He copied my Krampus twice. Rather annoying but was able to get around.
He can be annoying on defense because of his unpredictability. Probably bringing fast and very fast heroes only is rather okay strategy, because he’ll be always at disadvantage copying those.
Used Loki on Thor twice. It only counted as Thor’s first attack both times. That’s disappointing
It takes special depending on what level Thor was currently. So if he was at 1st, Loki copied that