Genevian

You can only cast Plant or Cactus creatures, but they cost {1} less to cast.
Whenever you cast a Plant creature, create a token copy of it for each Desert land that was tapped to cast it, except it is a Cactus creature type in addition to its other types.
{2}, Sacrifice a Cactus you control, {t}: Return target Plant creature from your graveyard to your hand.