Scepter of Empires

{T}: Scepter of Empires deals 1 damage to target player or planeswalker. It deals 3 damage instead if you control artifacts named Crown of Empires and Throne of Empires.

City in a Bottle

Whenever one or more other nontoken permanents with a name originally printed in the Arabian Nights expansion are on the battlefield, their controllers sacrifice them.
Players can't cast spells or play lands with a name originally printed in the Arabian Nights expansion.

Myr Mindservant

Wall of Shields

Defender (This creature can't attack.)
Banding (If any creatures with banding you control are blocking a creature, you divide that creature's combat damage, not its controller, among any of the creatures it's being blocked by.)

Throne of Empires

{1}, {T}: Create a 1/1 white Soldier creature token. Create five of those tokens instead if you control artifacts named Crown of Empires and Scepter of Empires.

Gustha's Scepter

{T}: Exile a card from your hand face down. You may look at it for as long as it remains exiled.
{T}: Return a card you own exiled with Gustha's Scepter to your hand.
When you lose control of Gustha's Scepter, put all cards exiled with Gustha's Scepter into their owner's graveyard.

Keeper of the Lens

You may look at face-down creatures you don't control any time.

Crown of Empires

{3}, {T}: Tap target creature. Gain control of that creature instead if you control artifacts named Scepter of Empires and Throne of Empires.

Golgothian Sylex

{1}, {T}: Each nontoken permanent with a name originally printed in the Antiquities expansion is sacrificed by its controller.

Despotic Scepter

{T}: Destroy target permanent you own. It can't be regenerated.

Apocalypse Chime

{2}, {T}, Sacrifice Apocalypse Chime: Destroy all nontoken permanents with a name originally printed in the Homelands expansion. They can't be regenerated.

Ersatz Gnomes

{T}: Target spell becomes colorless.
{T}: Target permanent becomes colorless until end of turn.