Rona, Herald of Invasion

Whenever you cast a legendary spell, untap Rona, Herald of Invasion.: Draw a card, then discard a card.: Transform Rona. Activate only as a sorcery.(can be paid with eitheror 2 life.)

TrampleWhenever a source deals damage to Rona, Tolarian Obliterator, that source's controller exiles a card from their hand at random. If it's a land card, you may put it onto the battlefield under your control. Otherwise, you may cast it without paying its mana cost.