Maelstrom's Hunger

Echo {7}{r}{r}
You can't activate any abilities of Maelstrom's
Hunger unless you paid Maelstrom's Hunger's
echo cost.
Pay 4 life, {2}{r}: Exile target creature you control.
Add {g}{g}{g}{u}{u}.
Pay 10 life, {6}{w}{b}: Transform Maelstrom's
Hunger into Tafad, The Maelstrom.