Feast deals and heals a percentage of the target's max health, so it shreds tanky cores.

Open Wounds slows the target, so cast it before Rage to stick to them for the kill.

Rage makes you debuff immune, so pop it when you commit instead of saving it for later.

Use Infest to dive into a creep and escape ganks, or coordinate with mobile allies for bombs.

Buy armor over raw health against physical lineups, it protects your Feast sustain.

Rage also increases magic resistance, so time it against burst spellcasts.