Demonic Tutor

Search your library for a card, put that card into your hand, then shuffle.

Divination

{T}, Sacrifice this artifact: Exile target player's graveyard.

{2}, {T}: You gain 5 life. Shuffle this artifact and your graveyard into their owner's library.

Exile target creature. Its controller may search their library for a basic land card, put that card onto the battlefield tapped, then shuffle.

{T}: Add one mana of any color in your commander's color identity.

Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

Haste
When this creature enters, creatures you control gain trample and get +X/+X until end of turn, where X is the number of creatures you control.