Thats why you always need to keep your eyes on the meter up top and the invade marker...its not rocket science. If they’re building up a large amount of motes and they’ve gone past the glowing marker its a sure bet blockers are gonna be followed by a invader. Drop what you’re doing and either get to the bank to wipe out the blockers as they arrive or get into a high flank position to await the invader. Banking second can be an advantage but not if you lost a ton of motes to invaders and you need to bank more than half the meter. Nothing wrong with sending 5 at a time to get your mote meter up then going ham with the large blockers once the opposing team are in their prime evil phase. Prime is a different story, someone has to be near the bank at all times with a shotty or jotunn.