Aeon Engine
{5}
Artifact
~this~ enters tapped.
{T}, Exile ~this~: Reverse the game's turn order. (For example, if play had proceeded clockwise around the table, it now goes counterclockwise.)
Sentinel Totem
{1}
Artifact
When ~this~ enters, scry 1. (Look at the top card of your library. You may put that card on the bottom.)
{T}, Exile ~this~: Exile all graveyards.
Surveyor's Scope
{2}
Artifact
{T}, Exile ~this~: Search your library for up to X basic land cards, where X is the number of players who control at least two more lands than you. Put those cards onto the battlefield, then shuffle.