4. Stops the unit being able to be used as a drop off for resources.
1. Use the Ability: Set ID field so that the abilities share a common link
2. Get the Effect: Effect - Initial field of the behaviour to use a Modify Unit effect to add the charges.
3. Get the explosion Search Area effect to use a Set effect that applies a Buff behaviour with a damage response on defender if fatal that uses a Modify Player effect on the caster while the second effect in the set is the Damage effect. You can set the damage response Combat: Damage Response - Require Effect Array field so that only the damage effect of the ability triggers the damage response.
4. Use a buff on the attacker with a damage response on attacker that applies a buff to the target unit with a damage response on defender when fatal that applies a third +max life buff stack to the caster.