Citanul Stalwart

{T}, Tap an untapped artifact or creature you control: Add one mana of any color.

Birds of Paradise

Whenever an opponent plays a land, you may put a land card from your hand onto the battlefield.

Players can cast spells only during their own turns.

You may play an additional land on each of your turns.

{3}, {T}: Double the amount of each type of unspent mana you have.

Flying
{B}{R}{G}, {T}: Target player draws a card.