Orvar, the All-Form | Gilded Lotus | Bösium Strip

(and one other card)

Activate
Gilded Lotus by tapping it, adding ({U} magic symbol) ({U} magic symbol) ({U} magic symbol) .
Activate
Bösium Strip by paying ({3} magic symbol) and tapping it, allowing you to cast instant and sorcery spells from your graveyard this turn.
Cast
Clockspinning by paying ({U} magic symbol) , targeting
Gilded Lotus.
Orvar's first ability triggers, creating a token copy of
Gilded Lotus.
Resolve
Clockspinning, putting it into your graveyard.
Activate the
Gilded Lotus token by tapping it, adding ({U} magic symbol) ({U} magic symbol) ({U} magic symbol) .
Cast
Clockspinning from your graveyard with buyback by paying ({3} magic symbol) ({U} magic symbol) , targeting
Gilded Lotus.
Orvar's first ability triggers, creating a token copy of
Gilded Lotus.
Resolve
Clockspinning, returning
Clockspinning to your hand.
Activate the
Gilded Lotus token by tapping it, adding ({U} magic symbol) ({U} magic symbol) ({U} magic symbol) .
Repeat from step 3.
Once you have infinite mana, you may instead target any other applicable permanent.

If you control another legendary permanent, this combo also produces "Infinite LTB" and "Infinite death triggers" by using the legend rule.