I think all you need to do is to change this line to your desired amount of mobs
// Monsters
ordeal_1-2,0,0 monster Fenix 1110,70 <== change 70 into your desired amount of mobs will spawn.. ( 1110 represent the ID# of monster ) and ( 70 represent how many mobs will pawn )
ordeal_1-2,0,0 monster Fenix 1110,100
ordeal_1-2,0,0 monster Fenix 1110,100
ordeal_1-2,0,0 monster Fenix 1110,100
ordeal_1-2,0,0 monster Fenix 1110,100
ordeal_1-2,0,0 monster Fenix 1110,100
ordeal_1-2,0,0 monster Fenix Guardian 1439,3
ordeal_1-2,0,0 monster Fenix Guardian 1439,3
I'm not 100% but i know that's you do it...