Emiel the Blessed | Preston, the Vanisher | Delney, Streetwise Lookout (and one other card)

Cards

Activate
Emiel the Blessed by paying ({3} magic symbol) , blinking
The Third Doctor.
When
The Third Doctor enters the battlefield, it triggers twice, and
Preston triggers twice if its power is 2 or less or once otherwise.
Resolve the
The Third Doctor triggers, creating two Treasure tokens.
Resolve the first
Preston trigger, creating a token copy of
The Third Doctor that is a 0/1 Illusion.
When the
The Third Doctor token enters the battlefield, it triggers twice, creating two Treasure tokens.
Repeat from step 4 for the remaining
Preston trigger, if applicable.
Activate three Treasures by tapping and sacrificing them, adding ({3} magic symbol) .
Repeat.

You may instead create Foods and/or Clues using
The Third Doctor's triggers as long as you have mana available.

This combo has been estimated to be Exhibition (Bracket 1+).