Reinforcement Potion, obviously. Additional speed, strength and vitality for a short time. Hopefully, reaction speed too.
Mana Potion, because what's life without blue bottles? Stimulates prana recovery for several hours.
Blood-clotting vial, if you want to be particularly boring.
Competence Elixir, to allow Shinji to make his own choices without player input for 3 updates.