Ground moves are effective against Fire, Electric, Poison, Rock, and Steel types, while being not very effective against Grass, Flying, and Bug types.
Damage Per Second, called DPS, is a indicator to look how powerful and efficient the move is to attack an opponent in gym battles. The higher the DPS of the move is, the more powerful the move is.
Energy Per Second, called EPS, is an indicator, to look how quick the fast move can fill the energy bar required for using charge move. EPS is assigned to fast moves but not charge moves.
Best Pokemon to beat Lapras
How to use PokeVision to track Pokemon [Pokemon Go]
Suicune stats & moveset