Spell: Protect Companion

You extend your aura, as a magical shield that protects your eidolon or minion. The target gains a +1 circumstance bonus to AC until the start of your next turn. You gain the Life Block reaction; after using the reaction, the spell ends and you can't cast protect companion again for 10 minutes.

@UUID[Compendium.pf2e.spell-effects.Item.Spell Effect: Protect Companion]

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Heightened (+2) The reaction reduces the damage by another 10, and you lose 5 more Hit Points. If you want to lose fewer Hit Points, you can choose to lower the damage reduction and HP lost to what any lower-rank version of the spell could do without lowering the spell's actual rank.