As a reaction, which you use when a hostile creature within 5 meters is reduced to 0 health or a friendly creature within 5 meters is reduced to half its health or less, you can rally an ally to push on. A creature of your choice other than you within 5 meters who can see or hear you gains 1d8 + your spellcasting ability temporary health.

Augment

You can increase the temporary health by 1d8 for each additional mana expended.