: Katherine, Living Lore can be your commander.

I: Katherine becomes a 3/3 Katherine creature with ward {3} in addition to their other types.

II: Katherine gains "If a lore counter would be put on a saga you control, you may add {G} or {U} instead."

III: Katherine gains "{2},{T}, Sacrifice an enchantment: Proliferate, fateshift."

IV: Draw two cards. Exile Katherine with 2 time counters. They gain suspend.