King of Paradise

(click on the image to see a larger version)

The image in the card is a king of paradise bird, which is a kind of paradise bird.

I was not sure about the mana cost, the original "birds of paradise" card costs only one green mana, but since this card is capable of producing mana without tapping, I thought it should cost more. On the other side, since you need to pay with lives it's most useful at the beginig of the game, I thought it should not cost too much.

Also, considering that this kind of cards should be used on multi-colored decks, having to pay 2 green mana compensates for it's cost, since you would need to, necesarily, produce green mana to summon it. In a multi-colored deck it means putting two forests in play instead of another land. Of course, this can be solved by using other ways to produce green mana, like the Elves of Llanowar.

On the other side, it's not so much of a disadvantage considering that once it comes into play you can generate mana of any color, without the need of tapping, just as long as you have lives to spare.