Urza, Lord High Artificer (Retro) [Modern Horizons] Colorless double the number of +1/+1

double the number of +1/+1 counters on each creature you control

if you have ten or more cards in hand

CON 9 (-1)

Set: Game Day 2022 Type: Legendary Creature — Nightmare Rarity: Rare Cost: {1}{B}{B} At the beginning of your end step

If it entered under your control

Urza, Lord High Artificer (Retro) [Modern Horizons] Colorless double the number of +1/+1Set: Modern Horizons Type: Legendary Creature Human Artificer Rarity: Mythic Cost: {2}{U}{U} When Urza, Lord High Artificer enters the battlefield, create a 0 0 colorless Construct artifact creature token with "This creature gets +1 +1 for each artifact you control." Tap an untapped artifact you control: Add {U}. {5}: Shuffle your library, then exile the top card. Until end of turn, you may play that card without paying its mana cost.