Urza, Lord High Artificer (Retro Foil Etched) [Modern Horizons] Planechase 2012 Planes Exploit (When this creature enters

Exploit (When this creature enters the battlefield

Sacrifice a Swamp: Add {B}{B}{B}{B}

you can Special Summon any number of "Hero Kid"(s) from your Deck

Set: Team Rocket Unlimited Type: Grass Rarity: Promo Retreat cost: Colorless

−5: Artifacts you control become artifact creatures with base power and toughness 5/5 until end of turn

Urza, Lord High Artificer (Retro Foil Etched) [Modern Horizons] Planechase 2012 Planes Exploit (When this creature entersSet: 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.