By the midgame-to-late, you will probably be able to out-damage skullcrusher with regular arrows playing as an archer.
As far as your wish goes, it depends on what you have and what you need. Some thoughts
-Rings of ice are decent for archers in the ToEF since bows/arrows tend to burn up quickly otherwise. If you bring 3-4 spare crappy bows this isn't really a big deal, but some people consider this nice for archers.
-If you have the appropriate resources (invisibility spell, magic missile, slow monster), an ancient karmic wyrm is a good choice. If you've got a lot of daemon slayers available, emperor moloch is good too. Note: using these wishes can result in circumstances that can kill you if you aren't ready to deal with the results.
-Ring of weakness. If you know how and why you would want to use this item.
-Find weakness skill. Extra critical hits is always good.
Consult what to wish for for more ideas.
Hoping to win with every class, doomed. Archer, Barbarian, Bard, Beastfighter, Druid, Elementalist, Farmer, Fighter, Monk, and ULE Priest down.