Kroxa, Titan of Death's Hunger [Secret Lair Drop Series] 245 you may change "swampwalk" to

you may change "swampwalk" to "plainswalk

if you activate a Spell Card

Set: Battle for Zendikar Prerelease Promos Type: Creature — Elemental Rarity: Mythic Cost: {4}{G}{G} When Greenwarden of Murasa enters the battlefield

you may put it onto the battlefield under your control

(It can't be blocked except by creatures with flying or reach

Kroxa, Titan of Death's Hunger [Secret Lair Drop Series] 245 you may change "swampwalk" toSet: Secret Lair Drop Series Type: Legendary Creature Elder Giant Rarity: Mythic Cost: {B}{R} When Kroxa enters the battlefield, sacrifice it unless it escaped. Whenever Kroxa enters the battlefield or attacks, each opponent discards a card, then each opponent who didn't discard a nonland card this way loses 3 life. Escape{B}{B}{R}{R}, Exile five other cards from your graveyard. (You may cast this card from your graveyard for its escape cost.)