Okay, either spells or me are being weird. Could be either. Or perhaps both!
------------
>asse
You asses your current combat arrangement...
[1] You are facing a green goblin at melee.
>look
You also see: a green goblin, a black rat.
>fac gob
You are already facing a green goblin.
You feel completely prepared to cast your spell.
>cast gob
A flash of green light streaks from your hand and strikes the black rat.
------------
>prep mm
You close your eyes and begin to recite the words to the Magic Missile spell.
>s
[Plains Of The Martyr, Streambed]
The streambed continues from here in both directions and the landscape changes with every step you take. Gnarled trees stretch out their limbs as if seeking the water that once flowed freely here. You also see: a green goblin, a goblin archer.
Obvious exits: north and south.
You feel completely prepared to cast your spell.
>cast gob
A flash of green light streaks from your hand and strikes the goblin archer.
[Roundtime: 2 seconds]
>asse
You are not engaged in combat with anything.