If you resolve multiples of Driven or of Despair in one turn, your creatures have that many instances of the appropriate triggered ability. Each instance triggers separately.
Driven // Despair
Once you've started to cast a spell with aftermath from your graveyard, the card is immediately moved to the stack. Opponents can't try to stop the ability by exiling the card with an effect such as that of Crook of Condemnation.
Multiple instances of trample or menace are redundant.
Magic: The Gathering · ™ & © Wizards of the Coast · Illus. Winona Nelson
Card data via Scryfall. Rarix is fan-made; not endorsed by the rights holders.
