# Extend Boost
#pf2e/focus_spell/level_1 #pf2e/class/summoner #pf2e/school/divination 
==[Uncommon](../../../Traits/Uncommon.md)== ==[Divination](../../../Traits/Divination.md)== ==[Metamagic](../../../Traits/Metamagic.md)== ==[Summoner](../../../Traits/Summoner.md)==
*Source* Secrets of Magic pg. 145 1.1
**Cast** ▬ verbal

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You focus on the intricacies of the magic binding you to your eidolon to extend the duration of your boost eidolon or reinforce eidolon spell. If your next action is to cast boost eidolon or reinforce eidolon, attempt a skill check with the skill associated with the tradition of magic you gain from your eidolon (such as Nature for a primal eidolon).

The DC is usually a standard-difficulty DC of your level, but the GM can assign a different DC based on the circumstances. The effect depends on the result of your check.

**Critical Success** The spell lasts 4 rounds.
**Success** The spell lasts 3 rounds.
**Failure** The spell lasts 1 round, but you don't spend the Focus Point for casting this spell.