Champion of Anu’s Spell Says:
“Silence, Stun and drain all mana from an enemy. Deal X damage to them and all enemies below them.”
Based on the order they are written, if the target has the Alert trait (immune to silence) then shouldn’t the Silence fail as it’s set to go off before the stun? (currently that doesn’t seem to be the case, as it silence a troop with the Alert trait)