Liar's Promise

Instead of paying Liar's Promise's mana cost, you may discard an Island card and a Mountain card.
Choose one - Counter target spell with converted mana cost 3 or less; or draw three cards, then discard two cards; or return target instant card with converted mana cost 3 or less from your graveyard to your hand; or return two target permanents to their owners' hands.
Mountaincycling {2}{r}