So, your opponent can still win via cards like Approach of the Second Sun or Thassa's Oracle, and your Lich's Mastery has no say in anything
Im surprised I dont see this more often, although its also understood that getting creatures in your graveyard is great because you can get them back out of there or take advantage of other mechanics like dredge or delve to get value
Balance, on the other hand, I dont think Balance would be okay to print at six mana
Outside of that time, the set's cards can be crafted using Wildcards of the appropriate rarity
Esper Sentinel (Modern Horizons II) Weve all played against Rhystic Study or Mystic Remora and seen them run away with games by drawing a bunch of cards - Esper Sentinel is whites answer to these cards
Bloodgift Demon At five mana, Bloodgift Demon stands out with its flying ability and an invitation to draw an extra card during your upkeep