#1- Gibraltar. Late game that extra damage reduction and shield will win you any 1v1 of it's shot for shot. You can basically see it as an extra shield bar that you carry at all times. Also his done has faster revives and healing. Some think it makes lifeline look pathetic.
#2 life line. - a healing drone, that you can actually use as cover, drop to revive someone with an invincible shield, for yourself to also heal or reload, or just use, and the ability to call down loot? Dope.
1-3#- Caustic. He isn't exactly situational. He can be used anywhere. Drop tons of fart cannisters that make Bangalore literally look like a offbrand rip off, obscure enemy sight, gain knowledge of enemies on damage, or if they shoot a cannister, (you will always know where they are basically with a well placed trap(s) set up. A reloading ult grenade that does all the above but ranged, damage reduction passive, and his farts also do increasing D.o.T. he is #1 on paper, but 1-3 based on YOUR skill. Not many people play their abilities well, despite how easy he is.
4. Revenant. Kill. Ult. Kill. Die. Keep killing. Repeat. His crouch strafe speed can make him extremely versatile close quarters and even when sniping as his peek game can be missed if you blink. Get some good slides and combine all this and you'd be surprised.
5. Wraith. Teleports and damage immunity for all of it. No draw backs except players can use her ult, but who charges through a wraith portal? No one knows where it goes and it's so easy to trap. Wraith just stands behind one end and if you go through, an automatic weapon will typically down you before you have a chance. Also just looking at her alerts her that someone aimed at her. There is no surprise attack on an attentive wraith.
