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PFS StandardMartyr [one-action] Feat 8

Cleric Spellshape 
Source Player Core pg. 117 2.0

You go to extreme lengths to support your allies, even when it means bringing harm to yourself. If your next action is to cast harm or heal to restore Hit Points to a single ally, you can channel your own vitality along with the spell. You lose 1d8 Hit Points per rank of the spell, which can’t be reduced or mitigated in any way, and your ally regains an equal number of Hit Points

Traits

Spellshape:

Actions with the spellshape trait tweak the properties of your spells. You must use a spellshape action directly before casting the spell you want to alter. If you use any action (including free actions and reactions) other than casting a spell directly after, you waste the benefits of the spellshape action. Any additional effects added by a spellshape action are part of the spell's effect, not of the spellshape action itself.