Can Tornado Shot chain?

Can Tornado Shot chain? (it would mean it would hit, release the subprojectiles, and hit another target and release subprojectiles again?)

Tornado Shot's subprojectiles can chain, yes.

The original arrows, pre-subprojectile, do not chain, fork, boomerang, or anything else. They auto-Pierce to whatever point you clicked on, dealing TS' listed damage to anything in the way, and detonate there, releasing normal arrows that do whatever normal arrows in your particular build do. No tomfiggery will ever cause Tornado Shot to release subprojectiles more than once - the subpros can chain, fork, pierce, whatever, but you'll never get another Tornado boom after the first one.

So the Ricochet ascendancy from Deadeye is kinda 'meh' for Tornado Shot then. Ok!

Tornado Shot is 100% pierce. This includes the sub-projectiles.

This means they can not do anything other than Pierce (Since Pierce has priority among the Projectile effects)

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Tarille wrote:

Tornado Shot is 100% pierce. This includes the sub-projectiles.

This means they can not do anything other than Pierce (Since Pierce has priority among the Projectile effects)

Incorrect. Tornado Shot's primary arrow, the thing you fire from your bow, is 100% pierce. The subprojectiles are not 100% anything unless made to be otherwise. Unless they've changed this in 3.0.0 and I haven't seen it yet, which is possible.

I've seen chaining/forking Tornado subpros in a few different builds now. Common practice up until now has been to make sure all the subpros are 100% pierce as well because Drillneck was busted as hell, Pierce SUpport is also busted as hell, and because it helped the coverage on Tornado Shot to have arrows lancing through entire packs, but you can make a Chaining TS build just fine.

Deadeye's +1 Chain can be valuable against large packs or oddly-shaped packs for TS builds, especially in 3.0.0 when Pierce is reworked to be less overwhelming. It effectively doubles the damage of any subpro that hits a target (by ensuring it hits another target, as well), though it's not as valuable against single biggites. That said, piercing subpros never hit a Biggite more than once anyways - they just helped ensure that any given Biggite took the one requisite subpro from every TS primary arrow for maximum DPS.

Any given Tornado Shot can only hit a single target once per primary arrow - you can have three, four, five, or seventeen subpros and only one of those will ever hit a given target. Get two primary arrows and you can have two subpros hit the same target. Three primary arrows, three subpros. Get to six or seven primary arrows and we see why Tornado Shot is the only bow skill that competes with Barrage for single-target damage - but you'll still only get six or seven maximum possible hits on Atziri or Shaper or anything else per click with Tornado Shot.

Chain can redirect subpros back to a Biggite if they hit critters, though, and can break the rule of only-one-hit-per-primary-per-target. Fire into a pack of critters surrounding Izaro with five primary arrows, for example:

-Your primary arrows pierce everything between you and where you clicked, including any number of smaller critters and also Izaro, if you aimed well.
-Your primary arrows reach their destination and Turnader, generating 3 subprojectiles each (in this example).

-Each individual set of 3 subprojectiles is subject to Shotgunning code; they cannot hit the same target. This is also because they all veer off in weird directions anyways. You can, at most, generate 10 hits per click in this way - 5 from the initial primary arrow pierce, and 5 for one-per subpro hits.

-+1 Chain allows the two subpros that do not hit Izaro to continue on into his little green men. Some subpros chain from LGM to LGM, but a few of them chain back to Izaro. This generates additional hits from a single click against Izaro. This is a net gain in DPS, if not a large one.

-Projectiles with +1 Chain that hit Izaro also chain out to individual LGM, generating additional hits against them. This doesn't matter because they're LGM and their sole function is to refill your flasks, but at least you get your flasks a little faster.

-Subpros with 100% Pierce can hit Izaro, pass through, and potentially also hit LGM on the other side of Izaro's oversized face, but they cannot magically change directions after piercing to hit Izaro again. 100% Pierce subpros can only ever hit Izaro once, meaning you're limited to the 10 total hits mentioned in the above breakdown.

I believe this is how it goes, at least. My own testing on an earlier TS guy showed the need for 100% pierce in gems/tree to get piercing subpros, and I can always take those off and throw on a Roth's Reach to check chaining when I get home, if someone doesn't get to it first.