Abdel Adrian, Gorion's Ward | Repository Skaab

Cards

You have a number of nonland permanents exiled by
Abdel Adrian that enter the battlefield untapped and that can tap to produce at least ({2} magic symbol) ({W} magic symbol) .

Cast
Scrollshift by paying its mana cost, blinking
Abdel Adrian and causing you to draw a card.
Abdel Adrian leaves and re-enters the battlefield, causing all cards exiled with it to be returned to the battlefield.
Abdel Adrian and
Repository Skaab's exploit ability trigger.
Resolve the
Repository Skaab trigger, exploiting another creature and triggering its second ability.
Holding priority, activate any number of permanents by tapping them, adding at least [cost].
Resolve the
Repository Skaab trigger, returning
Scrollshift from your graveyard to your hand.
Resolve the
Abdel Adrian trigger, exiling the mana producing permanent(s) and
Repository Skaab and creating that many 1/1 Soldier creature tokens.
Repeat.

Infinite mana nonland permanents you control that enter the battlefield untapped can produce.
Infinite card draw.
Near-infinite ETB.
Infinite draw triggers.
Near-infinite storm count.
Near-infinite LTB.
Near-infinite magecraft triggers.
Near-infinite death triggers.
Near-infinite sacrifice triggers.
Near-infinite creature tokens.
Near-infinite blinking of nonland permanents you control.

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