State 1700 - Heal
With state: 1700, you can heal up to 100 healthpoints, but it won't heal past the dark red bar. When the healing occurs, the health bar will flicker white. itr: kind: 8 also has a similar heal effect, except you can set how much you want it to heal.
Technical note
(thanks to STM1993 and Silverthorn)
HP normally regenerates 1hp every 12tu.
Healing spells recover 8hp every 8tu over 100tu; the 1st 8hp is applied within 4tu.
John's heals (state 1700 or itr kind 8) do not stack with each other, stopping prematurely if Red HP = Dark HP.
State 1700 only begins healing after leaving the frame, though the HP bar will start blinking when 1700 starts.
Jan's heal(ball hit_Fa4) applies a "regeneration" status effect that lasts the full 100tu, and stacks with state1700 or itr kind 8.