you can but its at a cost.
drow is int based, but has no +dmg or similar to heavy repeaters, drow gets 3 imbue i guess but imbues are terrible in r7+. halfing gets 3 sneak dice.
dex has tensers/alchem pots, int doesnt
dex has 4 races, int has 2
if you double slot the raid int, you get no dps...