Just the concept of multiple explosive shots screams "OP" to me (It could be done, but would be such a headache to balance.)
Though, this does remind me of an old idea I had. How it would work is make envenom not work on arrows (It's pretty bad on arrows anyway) then give different toggle-able arrows to choose from:
- Piercing shot: Low damage, but pierces armor (Something like 65% damage)
- Crippling Shot: Lower Damage, but slows the target (Very mild slow since we don't want another "Ice Arrow" fiasco)
- Puncturing Shot: Lower Base damage, but applies a bleed effect (85% initial + 35% bleed)
- Multi Shot: Low Base Damage, but shoots multiple arrows (5-6 arrows at 25% damage)
- Standard Shot: You basic arrow with the highest base damage and now special effects.
This would require the removal of ice volley, but i don't believe it would make ranger "OP" since they could only use one arrow at a time.