Sustain

A tool is a type of ability that allows agents to withstand and counteract damage being dealt to them while remaining active on the battlefield.
==Summary==
A sustain ability is used to let an agent endure increased amounts of damage that could put them at risk of death or cause it by either replenishing their missing health, granting them invulnerability, or reviving them from a state where they have taken lethal damage.
==Heal==
A heal applies the Healing or Overhealing buff on affected agents, increasing their health capacity. It cannot restore any shields, though abilities with the Overheal buff will allow affected agents to reach 150 effective health even if the player's health was already at or under 100.
===Ally heals===
Ally heals can be used on any of the casting agent's allies. The ability may or may not include the possibility for the caster to heal themselves.
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===Self-heals===
Self-heals only affect the agent who cast them.
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==Invulnerability==
Invulnerability makes the affected agent immune to all sources of damage.
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==Revive==
A revive is a sustain tool that allows the player to resist or come back from taking lethal damage that would otherwise result in their death.
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Category:Ability Functions