Training Grounds (Showcase Halo Foil) [March of the Machine: The Aftermath] War of the Spark Promos including 1–4 cards of rarity

including 1–4 cards of rarity Rare or higher

000 Type: Creature — Tyranid Rarity: Rare Cost: {X}{R}{G} Ravenous (This creature enters the battlefield with X +1/+1 counters on it

nontoken permanent you don't control with converted mana cost 4 or less

"To examine the causes of life

Training Grounds (Showcase Halo Foil) [March of the Machine: The Aftermath] War of the Spark Promos including 1–4 cards of raritySet: March of the Machine: The Aftermath Type: Enchantment Rarity: Rare Cost: {U} Activated abilities of creatures you control cost 2 less to activate. This effect can't reduce the mana in that cost to less than one mana.