Roaring Tyrant Thunderjaw

Vigilance, Haste

Whenever Roaring Tyrant Thunderjaw attacks,
scry 2, discard a card then draw a card.
If you control a Cauldron card, when Roaring
Tyrant Thunderjaw enters the battlefield, discard
your hand and draw that many cards plus one.

You don't run into an angry Thunderjaw and
expect to live to tell the tale.