Emotional Support Corpse {Support Build}

No intended order, purchase depending on gamestate

Check incoming damage to counter-buy.

Victor does not enjoy being in lane very much, whether it be his self-damage not being viable without the sustain in early game or his weak mid range game
These upgrades will help keep you afloat in this tough phase and maybe let you help your teammates do the same with Healing Rite and Locket.

No intended order, purchase depending on gamestate

I would always recomend Healing Nova over Rescue Beam, it's functionally just a Jumpstart that you can share with the class
Healing Tempo with Healing Nova can go nutty for your team
Rescue Beam can be good if you need to keep an overconfident teammate from death pretty consistently but other than that scenario Healing Nova is a better choice.

No intended order, purchase depending on game state.

You may have noticed that there are not enough slots to get every upgrade at the same time
The late game core abilities are very good for Victor and for your team so I recomend selling old abilities to make way for your new ones
Rush spirit burn ASAP if your foes have a good healing comp, sell torment pulse for spirit burn if you don't have a free slot
Sell Fleetfoot for Juggernaut if you have no free slots since Juggernaut is just a passive Fleetfoot with added sustain
Divine Barrier is currently overpowered and should be rushed if your team is taking too much damage
Infuser is the best enabler for Aura of Suffering, generally you should have a free slot from selling headshot booster in the mid-game and this is the ability to use that slot with, if you bought a different ability before Infuser refer to the previous abilities I said to sell.

So a supportive Victor build still puts you as a brawling tank, you just have the added ability to heal and protect your team
Victor is a natural buyer of Healing Booster and Restorative Locket, Locket naturally translates your aggression into healing output to you or your teammate
/ Healing Booster will help your Jumpstart and your Locket heals
You will meet up against your active slots limit pretty early on, generally you want to have; Rescue Beam/Healing Nova, Fleetfoot, Divine Barrier and Infuser by the end of the game.