You control lands that can tap to produce at least ({1} magic symbol) ({G} magic symbol) .
Steps
Cast Cloud of Faeries without paying its mana cost.
Cloud of Faeries enters the battlefield, untapping two lands that can produce ({1} magic symbol) ({G} magic symbol) .
Activate those two lands by tapping those, adding ({1} magic symbol) ({G} magic symbol) .
Activate Temur Sabertooth by paying ({1} magic symbol) ({G} magic symbol) , returning Cloud of Faeries to your hand and giving Temur Sabertooth indestructible until end of turn.