what about a Two-handed weapon (an axe or a hammer) which gives ALOT of damage but has a slow swinging speed and it gives negative armor? like +150 dmg and -30 armor (melee)
i think this wep should be useable by Kingsguard even if hes a tank, because with that big health + this weapon, even if he loses alot of armor he can deal massive damage and his big health wont let him die so easily (also make last boss stronger, because we kill him without any casuality, either a cleaving attack or alot of armor + stronger summoned mobs)
and if possible, make another shop with some "weapon upgrades" make a leaderboard (for the player who bought only) which shows the current stock of the "upgrade" (like you buy the AoE attack for your gun, it comes with... 100 charges? the leaderboard shows how many charges you still have, and this would be a good way to spend your money after you buy all the armors and weapons), for gunners, make some special powder to give either an AoE attack or a poisoning (
) attack, for staves, something like a "fireball" which wanders around your staff and when you attack, the fireball gets more tiny (either more damage or an AoE damage) (like if a part of it were thrown - and it should be easy to put the graphic, just add the item orb of fire effect on the hero) an iceball too, to slow down ppl and for melee people, a poisoned weapon or a weapon coated in beer, making all mobs who have been hit by it get drunk and have like 15% of chance to miss attacks, a "windfury" enchancement on the weapon (yes i play WoW lol) which increases attack speed (this would be surely good with the Two-handed weapon), a lava enchancement, when the mob gets hit he burns for some damage over time (for this enchancement you guys could simply use the ignite (or whatever its called) spell from the lava hero (from the tavern, the one who spawns lava minions and makes a volcano)
o well.. thats IF those stuff is possible, which i think would be surely hard to make