factotum said:
I think Strafe will shoot an arrow for all your minions onscreen as well, so if you have Valk, Decoy, and merc all alive, you would shoot 4 arrows at a single boss monster.
That was the case in earlier patches, where the maximum shots Strafe got was the lower of the limit from your skill and the number of monsters/minions (even party members' minions) nearby.
However, Strafe now works much like Zeal does, only with a bow. You fire x arrows, and if there's only one enemy nearby, it'll take all those arrows. This is why Strafe is so great for bosses, especially if you can slap on some Crushing Blow gear (
crafted gloves,
Goblin Toe,
Gore Rider,
Guillaume's Face, and
Rattlecage are the examples I can think of). Slow works wonders too- my strafer just made it to Hell, and between her slow (total of 40% from
Riphook and
Nosferatu's Coil) and her Holy Freeze merc, bosses are pretty harmless in general.
In the Multishot vs. Strafe argument, another thing I'd like to point out is the mana cost. Strafe has a fixed cost, whereas Multishot scales with the skill level. With the leech penalties in Hell, Multishot can be very difficult to power at times, especially when dealing with smaller crowds and/or unleechable enemies. With base Energy and minimal +mana gear, my zon can still use Strafe a fair bit before she's got to quaff a potion.
Another factor in choosing one over the other is weapon speed. Remember that crossbows need more IAS to hit the same attack frame rates as a bow, and the maximum speed is slower. My strafer using
Riphook needs just 30% more IAS (
Riphook has 30 built-in) to hit a 2-frame Strafe, and even without any IAS would have a 3-frame Strafe. Crossbows (even the supposedly fast ones like repeating crossbows) need quite a bit of IAS to hit a 3-frame Strafe, and that's the fastest you'll ever get with them. Since you're rooted in place when firing, the faster you fire, the lower the chances are that you'll get mobbed or hit by projectiles. This is a big reason why many people using powerful crossbows (ie
Buriza) opt for Multishot instead. Also, with the higher damage from crossbows, leeching is easier, so Multishot is more viable than with a bow. With bows, on the other hand, damage tends to be lower, and Strafe compliments this nicely, giving a damage bonus, whereas Multishot does not.
Whichever you choose to go for, try to get some knockback gear. A Windforce or some other bow with built-in knockback notwithstanding, you can get it from a) Nef rune in bow, b)
crafted gloves (chain gloves/heavy bracers/vambraces + Ort rune + magic jewel + perfect sapphire), or c)
Cleglaw's Pincers. The glove options are pretty good;
Cleglaw's have slow, which prevents the baddies from reaching you as easily, and
crafted gloves can get pretty much any mods that can appear on
rares, like IAS, +bow skills, +passive/magic skills, magic find, and resists.