Left click
Main envenoming bite
Left click is Dilo's main attack. It deals direct damage and, more importantly, envenomates the target, but venom only works from 50% growth onward. The rhythm is to bite, reposition, let pressure build, then come back before the opponent fully regains control of the fight.
Right click
Trigger hallucinations
Right click triggers mental pressure on a target that is already envenomated. It can be used at range and does not need to physically hit the enemy. An envenomated target turns purple once venom is advanced enough: that is the right moment to trigger hallucinations, which disrupt the target's reads and deal damage.
Scent
Check envenomation
Scent is also used to read the target's state: Dilo should use it to confirm whether the enemy is envenomated before spending right click. First, the victim becomes whitish: venom is starting to build and their vision darkens. An envenomated target turns purple once envenomation is advanced enough to trigger hallucinations, which then deal damage. That is what turns Dilo's gameplay into a sequence: find, bite, verify, disrupt, then punish.