Activate Clone using Civilized Scholar's ability by tapping it.
Resolve that ability and choose to modify it with dredge, causing you to mill at least one card, return the creature card with dredge from your graveyard to your hand, then discard that same card, untap Clone and fail to transform it.
Repeat.

Infinite self-mill

Near-infinite self-discard triggers

Creature with dredge

Civilized Scholar // Homicidal Brute

Clone

Activate Mirror Image using Civilized Scholar's ability by tapping it.
Resolve that ability and choose to modify it with dredge, causing you to mill at least one card, return the creature card with dredge from your graveyard to your hand, then discard that same card, untap Mirror Image and fail to transform it.
Repeat.

Combos with "Civilized Scholar // Homicidal Brute"