Sheoldred, Whispering One [The List] Unlimited Edition Serra Ascendant gets +5/+5 and

Serra Ascendant gets +5/+5 and has flying

If this mana is spent to cast a creature spell

put a +1/+1 counter on Undergrowth Champion

If a spell cast this way would be put into a graveyard

Sheoldred, Whispering One [The List] Unlimited Edition Serra Ascendant gets +5/+5 andSet: The List Type: Legendary Creature Phyrexian Praetor Rarity: Mythic Cost: {5}{B}{B} Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.) At the beginning of your upkeep, return target creature card from your graveyard to the battlefield. At the beginning of each opponent's upkeep, that player sacrifices a creature.