Twitch's basic attacks apply a stack of Deadly Venom, dealing 2 / 3 / 4 / 5 / 6 true damage per second for 6 seconds. This effect can stack up to 6 times for a minimum of 12 / 18 / 24 / 30 / 36 and maximum of 72 / 108 / 144 / 180 / 216 total true damage over the duration.
Deadly Venom stacks are NOT removed when this ability is used.
Upon infecting an enemy champion with Deadly Venom, Twitch receives a range indicator showing Contaminate's radius.
The actual range is very slightly bigger than the shown radius.
Damage from Contaminate is not applied if Deadly Venom wears off or the targeted unit moves out of range prior to the damage being applied.
COST: 100 / 125 / 150 mana
COOLDOWN: 120 / 110 / 100
Active: For 7 seconds, Twitch gains bonus attack damage and 300 bonus attack range (850 total range), and causes his basic attacks to travel across their full range and skewer every enemy they pass through, dealing 20% less damage per enemy hit down to a minimum of 40% damage.
Attack Damage: 20 / 28 / 36
Rat-Ta-Tat-Tat is a self-buff ability that also causes Twitch's basic attacks to be replaced by pass-through linear skill shots.
Rat-Ta-Tat-Tat has no cast time and does not interrupt Twitch's previous orders.
Twitch's attacks during Rat-Ta-Tat-Tat can outrange turrets (850 range opposed to the turrets' 800) meaning he can damage them during Rat-Ta-Tat-Tat without taking damage from them.
Twitch's attacks will pass through structures and terrain, but will not damage structures unless they were directly targeted for the attack. The exception is the Nexus - Twitch's attacks will not deal any damage to it. This is likely a bug.
For purposes of Runaan's Hurricane, attacking with Rat-Ta-Tat-Tat counts as a single auto-attack against a single targeted enemy, and as such will only launch one pair of ordinary single-target bolts to nearby enemies. However, the range bonus applies for all three bolts.