Vault of Wandering

When Vault of Wandering enters the battlefield, draw X cards, and then discard X cards.
At the beginning of you end step, put a lore counter on Vault of Wandering, and then draw X cards, and then discard X cards.
Exile Vault of Wandering, search your library for target permanent, and then shuffle your library. Activate this only if you have four or more lore counters on Vault of Wandering.