The Rat Ambush (New Twitch Q suggestion)

Ambush Passive: Gain 8% bonus movement speed while near hindering terrain (walls).

Active (while near walls) Cooldown 16 seconds. Go stealth while near walls for 4/5/6/7/8 seconds and increases movement speed by 12%. Leaving a wall will turn twitch partially visible. He will leave stealth entirely if away from a wall for more than 1 second. When twitch leaves stealth he gains (30/40/50/60/70) attack speed.

• Secondary Active (while stealth) 600 range Twitch dashes in a line, exiting stealth. Enemies he makes contact with flee for 0.75/1/1.25/1.50/1.75 seconds.

It just feels right.

Edit: I think there's lots of counterplay to this kind of stealth and adds some additional mobility to twitches kit at the same time. The stealth itself just fits his theme kinda well I think.