CLB: Karlach, Fury of Avernus (Foil Etched) MtG Search your library for up

Search your library for up to two basic land cards

except it's a Ninja in addition to its other creature types

Other action spaces allow players to engage in various set collections that score points for assembling those sets

36 Ikoria: Lair of Behemoths Draft Booster Packs

Sacrifice this artifact: Target creature you control explores

CLB: Karlach, Fury of Avernus (Foil Etched) MtG Search your library for upWhenever you attack, if it's the first combat phase of the turn, untap all attacking creatures. They gain first strike until end of turn. After this phase, there is an additional combat phase. Choose a Background (You can have a Background as a second commander.)