It's goaded for the rest of the game and it gains "This creature can't be sacrificed." (It attacks each combat if able and attacks a player other than you if able.) Whenever a creature you own but don't control attacks, you draw a card
Whats more is that Gramma Tala, Spirit of the Oceans ability, Do You Know Who You Are?, is perfect when paired with many of the other great sapphire cards in Into the Inklands
That's a limited No Mercy on a stick
Its great in Elves, for example, so you might want to run a Pyroclasm or two out of the board
The shiny odds are much higher, too
Between the cosmic-horror vibe and the fact it was banned in Commander for being too miserable to play against, Emrakul became the go-to name people drop when they mean the ultimate final boss of Magic