Diregraf Colossus [Shadows over Innistrad Promos] Commander Anthology Set: Prophecy Type: Enchantment Rare

Set: Prophecy Type: Enchantment Rare Cost: {1}{U} Whenever a player puts a nontoken creature onto the battlefield

Set: Time Spiral Timeshifted Type: Instant Rarity: Rare Cost: {G} Counter target instant or Aura spell that targets a permanent you control

where X is the total amount of mana paid this way

I even remember some of those places

Diregraf Colossus [Shadows over Innistrad Promos] Commander Anthology Set: Prophecy Type: Enchantment RareSet: Shadows over Innistrad Promos Type: Creature Zombie Giant Rare Cost: {2}{B} Diregraf Colossus enters the battlefield with a +1 +1 counter on it for each Zombie card in your graveyard. Whenever you cast a Zombie spell, create a tapped 2 2 black Zombie creature token.