Lord of Tresserhorn

When you cast Lord, you lose 4 life and each opponent draws 2 cards.
If your opponents have drawn 7 cards total on your turn, Lord gains haste. If they've drawn 10, Lord gains first strike. If they've drawn 15, Lord can only be blocked by one creature. For every 5 additional cards they draw (beyond 15), you can sacrifice one creature and give Lord +6/+0. These effects last until the end of the turn.
{b}: Regenerate.