Blue
Ravenous Bugblatter Beast of Traal
Please look at the monster section of Witchlight. All offensive casting - in other words anything you'd counterspell - has been switched to this format. Without any note of the level of the effects even if you did want to just allow it.I think this is a bit of a strong reading, one spell has been made into an action, the remaining spells can all be counterspelled.
I think it‘s a good change that will make running spellcasting NPCs much easier. The new War Cleric example I saw looked great.