Kit Buff idea: Engineer
So other the puffer engineer is probably the worst kit in the game. It has almost no uses even its tnt doesn’t even do dmg or even work. The only use it currently has isn’t even allowed and can only be used in priv games which are using the piston to get above the height limit.
TNT buff: get the TNT to work again and make it explode on impact of a block or within a 1 block radius of a player. This would do very large amount of dmg and makes it easier to go after someone with much better loot then you. If necessary you could lower the cooldown on getting TNT as well.
Items Buff: Instead of all the useless items to currently has, engineer could possibly spawn with a few anvils that could be used to drop onto people (which is so fun to do) and a grey dye that makes a 3x3 wall wherever you are looking when you right click it
Overall this seems like a buff that would make the kit very very fun to use