Toby himself is actually pretty good, the only real blatantly broken thing about him is HIS ULT, and that the stuff that makes him good is so far at the end of the helix that your first priority, even before any gear, is to get him to rank 8. Rank 9 and 10 don’t do much for him but from 4 to 8 each level boosts his ability to do well by about 50%.
Get all the crystals you can, but only when you’ve already tagged the entire creep pack with your arc mines early game. Spend everything on buildables and learn to use his stun arc mine and jump jets in medium to close range because that’s actually where toby shines. Most people just snipe with him and then cry when his shield goes down because they’re now useless… which is their fault. He is mean in cqc with his escape mobility, shield and stun mine.
It’s really hard to explain his playstyle, because it really is advanced like the placard says. You don’t snipe all game with the shield, you don’t rush up on people with arc mines every cooldown, you don’t sit with a healer and jump jet around… you do all of it, all of the time. Drop the shield and you’re a sniper, someone rushes you and jump jet away to peg them with a stun mine for a charged shot. Keep in mind the split beam upgrade, if the shield is placed close to the enemy, will hit for 3x damage! Throw a shield on the ground when getting hit by melee and run around it firing at them, if it splits right in front of them it will nuke them to pieces.
You have to learn 2 travel times for your gun and be able to aim with either of them with no hesitation, which is hard. You also have to be comfortable with 2 different charge speeds depending on how far along the game is, or your dps suffers, which is hard. He is easily killed if trapped, so make sure you know how many boosts you’ve got left and keep 1 handy for an escape.
The character himself is REALLY strong if you can get the hang of him, but not easy. Which is why most people try to use the shield as some kind of base defense shieldwall and snipe… which ends badly most of the time or does barely anything to help if it does work.
Remember the stun mine will force drop tank shields and you have to aim above and to the left of the head for a crit. The crosshair will turn blue when the gun is fully charged, and you can boost while holding a fully charged railshot.
NEVER USE HIS ULT. Forget you have it. Bar none worst ult in the game, massively cripples him and does less damage than his main cannon. Never try to use it unless you’re going for the lore challenge, or if you do use it (to trick people into thinking you are terrible at the game and seriously trying to use his ult) make sure to cancel it when they start to rush you for the kill and surprise them by not being garbage.