what to use against Wingael?

Wingael (if you know how to play as Elves) cannot be defeated by any race except Orcs, because they have the resilience to withstand any initial attack, while other races have nothing, and they will be utterly crushed with minimal losses due to luck, a sworn enemy, and dragons with acid breath (two squads at a time), plus archers who ignore 50% of the enemy's defense.

Choose Orcs; your opponent will have no chance against them. It's impossible to win Wingael with any other race (unless you find the Staff that reduces the enemy's initiative by 20% or the Ring that increases the ally's initiative by 20%, provided that your opponent doesn't have any artifacts that increase initiative).