[Renojustin]

Here I should point out that it's pretty bad manners to cast a battlefield enchantment and then retreat with the casting mage; it verges on exploit.

Llama, what are your rules in this game regarding this?

Edit: the spell was Light of the Northern Star, which isn't necessarily bad in and of itself, but many games have rules where NO BE can be cast with the mage subsequently leaving. Just thought I'd nip it in the bud since it wasn't mentioned in the OP.