Pathway of Choices

Exile a card from your graveyard or hand: Add one mana of any color to your mana pool.
{1}{g}: This land becomes a 7/6 with flying, vigilance, lifelink, hexproof, and double strike until end of turn.
{r}{b}: Deal X damage divided to X non land permanents or players where X is your life total divided by two. If any creatures would die this turn, exile them instead. Sacrifice this land.
{w}{u}: You gain 3 life. Target player discards the top 5 cards of his/her library.