Tooth and Nail [Mirrodin] Instant Set: Guildpact Type: Land —

Set: Guildpact Type: Land — Island Mountain Rare Cost: ({T}: Add {U} or {R}

Set: Limited Edition Beta Type: Land — Island Mountain Rare Cost: ({T}: Add {U} or {R}

and Popplio

If an effect causes you to discard a card

Set: Limited Edition Beta Type: Creature — Troll Rare Cost: {2}{R} Sedge Troll gets +1/+1 as long as you control a Swamp

Tooth and Nail [Mirrodin] Instant Set: Guildpact Type: Land —Set: Mirrodin Type: Sorcery Rare Cost: {5}{G}{G} Choose one Search your library for up to two creature cards, reveal them, put them into your hand, then shuffle your library. Put up to two creature cards from your hand onto the battlefield. Entwine {2} (Choose both if you pay the entwine cost.)