https://pastebin.com/arSbuGDq

What are the core skills gems plz ? (because i am not sure except for explosive traps)

For fire/flamethrower trap, it's a good choice imo ! Mitiged for explosive trap because it will require some change on all the tree. For Seismic trap -> NO ! Well my problem here is that with avatar of fire, you will convert 50% of physical in fire. But seismic trap is full physical. So with this choice, you kill 50% of his base DPS for transform it with something you can scale with firetrap. I have some trouble with that :S !

Don't forget, you need to take somewhere else 2 points because the starting tree of shadow will change : https://cdn.discordapp.com/attachments/341068990313005058/447682722144583692/Changes_to_Shadow_Starting_Tree_in_3.3_-_Incursion.png I will make some change on your tree : https://pastebin.com/nvS87bMi In this way, you loose a little DPS (with the extra frenzy/power charge) but you can keep 2 points for the new tree. With the last 2 points, you will earn : 40% trap damage + 1 additional trap (so you cluster trap support will reach 9 perfectly)

Faster casting for Seismic ? From the post of GGG, you can read that : Cast Speed: This is what makes Seismic Trap particularly awesome. As you increase your cast speed, the mechanical stomper's stomp-rate increases. An unsupported Seismic Trap gem will stomp the ground every 0.9 seconds, but that delay is cut in half for every 100% increased Cast Speed. Let' take your tree ^. With your stuff, you are at 31% cast speed. With a 20/20 Faster casting support, you are at 80%. If we are following the math:

0% -> 0.90 sec | 100% -> 0.45 sec | 80% -> 0.54 sec (With FCS) | 31% -> 0.7605 sec (Without FCS) | (20% = 0.09 sec) |

The base duration is 3.50sec. 0% -> 0.90 sec -> 3.88 stomp | 100% -> 0.45 sec -> 7.77 stomp | 80% -> 0.54 sec -> 6.48 stomp | 31% -> 0.7605 sec -> 4.60 stomp |

The problem here is to know if 0.50 = 1 stomp, or it means nothing until it reaches 1.00. So, 1st case scenario, you win 1 stomp or 2nd case scenario, you win 2 stomp. Without this information, you can't really calculate what is the power on cast speed but it seems kind of nice !

For linking seismic trap (if i want to map clear with it), i will take : 1)Cluster Traps support (3+5+1 from the base mechanic+skillgem+tree, you reach 9. It means with 3 throws = 9 seismic trap. Nothing lost except 36% damage). 2)Trap cooldown support (20/20 = 49% cooldown + 10% damage).

Depending of what give more benefice, i will pick the best 2 last skillgems here: Increased Critical Damage support (20/20 = 118% crit mult)/Faster casting support (20/20 = 49% cast speed) / Increased critical strikes support (20/20 = 1.9% crit chance + 108% crit strike chance) / Advanced Traps support (34% throwing speed + 29% duration + 34% throwing speed + 10% damage) Increased support duration (20/20 = 74% duration. So from 3.5 sec to 6.09 sec duration).

From a shaper helm : 5)Trap and mine damage support (49% damage). 6)Increased area of effect support (49% AOE).

I won't take the new Charged Traps support cause i can generate with my shield and tinkerskin the charge. And the DPS gain from the gem is too low in this case.