Mulligans
Aggro Mulligans
Swarm the board and keep as many minions alive as possible to set up for the turn five bloodlust or warleaders.
Combo Mulligans
If you saved scargil you can combo your opponent down with scargil + underbelly/ghost light angler + three murlocs/ghost light angler + soul of the Murloc into next turn double bloodlust or bloodlust and Murloc warleader or any combination of the two to finish off your opponent, all while using the Hagatha spells to keep you alive.
Control Mulligans
Hagatha and underbelly angler allow you to sustain in control matchups and set up your combo.
An aggressive deck that controls the board to set up for a turn five bloodlust to finish the opponent. In control matchups Hagatha allows you to sustain and set up for a potential combo.