[Lance he wasn't going to bring his axe down on your sweet head, he was just pretending, so the movement of the axe was nowhere near the head. He's still holding it back behind him, threatening to strike but not striking.

But he breaks out in a grin when Lance shoves Richard to the side, though. That's what he's talking about! Lance might look like a wimpy kid but he has the heart of a stupid self destructive champion and Magnus is extremely proud. So proud that he's grinning like a lunatic, and clearly loses the plot of this sneak attack, only remembering when Richard speaks.]

Uh, yeah. No offense, but I'm killing Richard because he owes me money. Unless you stop me? Why don't you show me what you've got! Or else, like I said, I'm killing Richard to death.