Incubated Genes

At the beginning of your upkeep choose a type among Frog, Snake and Salamander.
Until end of turn, creatures you control are from the chosen type in addition to their other types.
You may pay {g/u} instead of paying the mana cost
of activated abilites of creatures you control of
the chosen type.
{3}{g}{u} : Return target creature of the chosen
type from your graveyard into your hand.