A player can choose to design a deck around one of these effects or select Artifacts that fit the playstyle they’re already comfortable with. Greater Artifacts provide passive buffs, but they also introduce triggered abilities, which are effects that activate as the result of a player’s actions. Greater - This type of Artifact represents something more powerful and the effects that come with them reflect that.A player can slot three Lesser Artifacts to augment their planeswalker. Lesser - These tend to be small trinkets and oddities that provide benefits in the form of passive character buffs.