Mecha Phantom Beast O-Lion VS normal summon (double summon in one turn)

You can use Mecha Phantom Beast O-Lion's effect to banish it from the Graveyard and Normal Summon a Mecha Phantom Beast monster from your hand during the same turn you have already used up your 1 Normal Summon already.

Also you can use Mecha Phantom Beast O-Lion's effect to banish it from the Graveyard and Normal Summon a Mecha Phantom Beast monster from your hand and then Normal Summon a monster with your 1-per-turn Normal Summon that you get each turn.