Opportunist/9th/Beastmaster

Grave Guardian

Starting from 9th level, your companion is so loyal and understands your wishes so well that you can control it even if you cannot take actions—even if you are unconscious or dead. Your companion still acts on your initiative (and if necessary rolls initiative using its own ability scores). You control your companion's actions, reactions, and movement until you again become able to take actions. If at any point your companion starts a turn where it cannot detect your presence, you cannot control it and it instead uses all of its movement and actions to return to your side as safely and effectively as it can—searching aimlessly if there is no better option.

If your body decomposes for a week, or your body becomes unrecognizable by your companion, you lose control of your companion.