Undead Warchief [Time Spiral Timeshifted] Plains Lair of the Hydra becomes

Lair of the Hydra becomes an X/X green Hydra creature

As Serra's Emissary enters the battlefield

Set: War of the Spark Promos Type: Legendary Planeswalker — Bolas Rarity: Mythic Cost: {U}{B}{B}{B}{R} Nicol Bolas

Set: Collectors' Edition Type: Instant Rarity: Common Cost: {G} Target creature gets +3/+3 until end of turn

Set: Friday Night Magic 2006 Type: Sorcery // Sorcery Rarity: Rare Cost: {G} // {1}{B} All lands you control become 1/1 creatures until end of turn

Undead Warchief [Time Spiral Timeshifted] Plains Lair of the Hydra becomesSet: Time Spiral Timeshifted Type: Creature Zombie Rarity: Rare Cost: {2}{B}{B} Zombie spells you cast cost {1} less to cast. Zombie creatures you control get +2 +1. It has the strength of seven men. In fact, it used to be seven men.