Using two or more abilities at the same time
 

Munchkin Pathfinder combo: Ally "Valeros," "Necromancer," "Red Mantis Assassin," and "Super Munchkin."

• Does this Munchkin Pathfinder combo allow the player to stack their abilities, which are triggered at the same time or does the player have to choose which ability they are using?

"Super Munchkin" or "Double Life" gives the player the ability to be multiple classes / factions.

• Does this allow the player to stack their abilities, which are triggered at the same time or does the player have to choose which ability they are using?
• For example, if the player is two "Necromancer" classes, can the player use both the "Necormancer" class abilities at the same time?

Re: Using two or more abilities at the same time
 

This question is a little complex for 101 but the basic answer is simple: you are not allowed to "double dip" with a discard-driven power. You must declare which ability each discard is powering.

(Also, you can't have two copies of the same Class with Super Munckhin, or anything else. So your second scenario is illegal from the start.)