Q:
Any boon removal abilities for the Engi?
A:
the mines from the mine gadget remove boons. But only 1 per mine and I am not 100% sure but sometimes I think it does not take effect.
Elixir gun’s #3 will remove conditions from allies, and the #5 puts down a light field that will periodically cure conditions from anyone standing in it. Elixirs C and R will cure one condition at whomever you throw them at, including yourself. Finally you can trait for Cleansing Formula 409, which gives any thrown elixir this ability.
Oh duh, I read boon as conditions. Nevermind. You could try using a sigil that removes boons on a crit.
Pain transference (pain inverter toolbelt skill for asura).