Recommend utility/surprise swap weapons for invasions

What are some good weapons or ashes of war that can help you with certain scenarios while invading? These would be weapons you wouldn't normally use regularly, but excell for quick surprise switches.

For instance Stormhawk Axe can be switched to for its AoW if a gank squad rushes you down. Vyke's Warspear can provide crowd control in narrow cooridors. Blackflame Tornado can create space and trap players. Hoarah Loux's Earthshaker can help in a pinch in a corner against greedy players.

I'm specifically looking for weapons that can be used with the stats 20 Str/22 Dex/20 Fth, but will take any ideas you have; it'll be helpful to watch out for them too.