Predecessor Builds > GRIM.exe > GRIM mid [v0.17.3] (AP one shot + AD build)

AD Build from Neft, Cold and Laken latest builds

As midlane, it is more reliable to go attack damage (AD), however you can go ability power (AP) to one shot people

AP build

It is a mid to late game build, so be careful in the early game
If you choose to go the AP build, at 3 items you get the potential to deal some serious dmg from kilometers afar with Blast + GTFO
At 4-5 items you can get 60-70% of a squishy hp with a combo

Crest:

The most reliable crest is Liberator, although you can go Typhoon and Pacifier if you prefer,
Even Fenix is an option since as a midlaner you'll get much more attention from the enemy offlaner and jungler