Cadric, Soul Kindler | Aminatou, the Fateshifter

Cards

Cast
Aminatou by paying ({W} magic symbol) ({U} magic symbol) ({B} magic symbol) .
When
Aminatou enters the battlefield,
Cadric triggers.
Holding priority, activate
Brass Infiniscope by tapping it, adding ({C} magic symbol) ({C} magic symbol) .
Resolve the
Cadric trigger, causing you to pay ({1} magic symbol) to create a token copy of
Aminatou.
Activate
Aminatou's second loyalty ability by removing a loyalty counter from it, blinking
Brass Infiniscope.
Activate the token
Aminatou's second loyalty ability by removing a loyalty counter from it, blinking the nontoken
Aminatou.
Repeat from step 2.

Once you have infinite mana, you can blink other permanent(s) instead. If those permanents are legendary, you can copy them via
Cadric.
Each activation of
Brass Infiniscope adds a delayed triggered ability that can draw you cards and gain life if you cast a spell with ({X} magic symbol) in its cost. If you wish to use these abilities, you'll want to stop the combo before getting too many triggers such that you'll deck yourself and lose the game. To gain life, you must spend at least ({2} magic symbol) for X when casting the spell.

Infinite ETB.
Infinite LTB.
Infinite blinking of permanents.
Infinite card draw.
Infinite colorless mana.
Infinite copies of legendary permanents you own in play until end of turn.
Infinite landfall triggers.
Infinite mana lands you control can produce.
Infinite mana permanents you control that enter the battlefield untapped can produce.
Near-infinite lifegain.
Near-infinite lifegain triggers.
Infinite draw triggers.

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