Leyline of the Guildpact [Murders at Karlov Manor Prerelease Promos] Sorcery except their base power is

except their base power is half that creature's power and their base toughness is half that creature's toughness

Set: Dungeons & Dragons: Adventures in the Forgotten Realms Promos Type: Creature — Skeleton Rarity: Mythic Cost: {1}{R}{R} Flying

Set: Introductory Two-Player Set Type: Instant Rarity: Common Cost: {U} You may tap or untap target artifact

then search your library for a basic land card

Whenever a commander you control enters the battlefield or attacks

Leyline of the Guildpact [Murders at Karlov Manor Prerelease Promos] Sorcery except their base power isSet: Murders at Karlov Manor Prerelease Promos Type: Enchantment Rarity: Rare Cost: {G W}{G U}{B G}{R G} If Leyline of the Guildpact is in your opening hand, you may begin the game with it on the battlefield. Each nonland permanent you control is all colors. Lands you control are every basic land type in addition to their other types.