Murky - Default

Level 7

Slippery When Wet is an incredibly strong default talent, letting you weave in and out of fights and easily escape most situation, and has synergy with Rejuvenating Bubble .

Black Lagoon is a rare exception where on occasion this talent lets you trivially kite some melees with the increased Q radius.

Level 10

March of the Murlocs should be the pick in almost every game, as it's by far the most valuable tool Murky can bring to a teamfight. A good Murky player always plays with his team to set up a good March flank to win the fight.

Octo-Grab should only be picked when your strategy involves never fighting 5v5 (e.g. Sky Template ratting), you have a global meme (e.g. Octo-Grab + Planet Cracker) or you absolutely have to prevent an opponent from globaling out of lane (e.g. Stage Dive, Dehaka Z). Note that stopping globaling still relies on you being in cast range when they activate their global, which means they can easily counterplay this by using their global behind a gate or out of vision!