There are 3 ways, One use a Create Healer effect like SCV but that needs channeling. The second method is to use a Create Persistent effect that uses a periodic Modify Unit effect. The third way is to apply a buff that increases life regen. If you want it to cost resources to repair you could always try combining a Create Healer effect with a Create Persistent effect.
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Contribute to the wiki (Wiki button at top of page) Considered easy altering of the unit textures?
There are 3 ways, One use a Create Healer effect like SCV but that needs channeling. The second method is to use a Create Persistent effect that uses a periodic Modify Unit effect. The third way is to apply a buff that increases life regen. If you want it to cost resources to repair you could always try combining a Create Healer effect with a Create Persistent effect.
Contribute to the wiki (Wiki button at top of page) Considered easy altering of the unit textures?
https://www.sc2mapster.com/forums/resources/tutorials/179654-data-actor-events-message-texture-select-by-id
https://media.forgecdn.net/attachments/187/40/Screenshot2011-04-17_09_16_21.jpg