Lae'zel, Vlaakith's Champion | Jace, Cunning Castaway | Nicol Bolas, Dragon-God

Cards

Nicol Bolas in hand.
Lae'zel and
Jace on the battlefield.
({U} magic symbol) ({B} magic symbol) ({B} magic symbol) ({B} magic symbol) ({R} magic symbol) available.

Cast
Nicol Bolas by paying ({U} magic symbol) ({B} magic symbol) ({B} magic symbol) ({B} magic symbol) ({R} magic symbol) .
Nicol Bolas enters the battlefield with five loyalty counters due to
Lae'zel.
Activate
Nicol Bolas using
Jace's third loyalty ability by removing five loyalty counters from it.
Nicol Bolas dies as a state-based action due to having zero loyalty.
Resolve the
Nicol Bolas ability, creating two non-legendary copies of
Nicol Bolas, which enter with five loyalty counters each due to
Lae'zel.
Repeat from step 3 using a
Nicol Bolas token.
Once you have infinite
Nicol Bolas tokens, you may activate them using
Jace's second loyalty ability by removing two loyalty counters from them, creating infinite 2/2 Illusion creature tokens.
You may also use
Nicol Bolas' first ability to draw infinite cards, and exile all permanents your opponent control.