[Loki doesn't respond. Instead, he smiles, sharp as the dagger lying beside him, and casts a burst of green flame onto the ground beneath Thor's feet. It roars like a forest fire, erupting in six foot flames. This is no illusion - this is all too real.] If I burn, brother, then you burn too.
[He rolls back to his feet, wincing at the sharp, lancing pain of his injured arm beneath him, skids back, and plucks the second dagger from his waist, as predicted.]