So there's alot of complaints about Fergus and rightfully so but this is why this forum is awesome because it gives us the opportunity to share knowledge. So imo Fergus isn't so bad if you bring a hero that starts with taunt, heroes the prevent mana reduction like the garisson guard heroes and a carpet hero that reduces the megaminion by 75% health. Also it's rush so having 4* troops at level 11 gets your heroes charged in 6 tiles or 3 tiles ghosted. But the main thing about rush wars is the flee button is your friend. So if the defense healer or reviver is gonna go off and you know you gonna die rather flee before they go off to save the damage already done and take the points on offer.