Orvar, the All-Form | Peregrine Drake | Mind Games

Cards

You control up to five lands that can tap to produce at least ({2} magic symbol) ({U} magic symbol) ({U} magic symbol) .

Activate up to five lands you control by tapping them, adding at least ({2} magic symbol) ({U} magic symbol) ({U} magic symbol) .
Cast
Mind Games with buyback by paying ({2} magic symbol) ({U} magic symbol) ({U} magic symbol) , targeting
Peregrine Drake.
Orvar's first ability triggers, creating a token copy of
Peregrine Drake.
When the
Peregrine Drake token enters the battlefield, it triggers, untapping up to five lands.
Resolve
Mind Games, returning it to your hand.
Repeat.
If you control up to five lands that can tap to produce at least ({3} magic symbol) ({U} magic symbol) ({U} magic symbol) , this combo nets infinite mana, which you can then target any creatures you control in step 2 to create infinite token copies of them.