Sol Ring

Island

Winter Orb

As long as Winter Orb is untapped, players can't untap more than one land during their untap steps.

Plains

Invisibility

Enchant creature
Enchanted creature can't be blocked except by Walls.

Mox Pearl

Tundra

Clockwork Beast

Clockwork Beast enters with seven +1/+0 counters on it.
At end of combat, if Clockwork Beast attacked or blocked this combat, remove a +1/+0 counter from it.
{X}, {T}: Put up to X +1/+0 counters on Clockwork Beast. This ability can't cause the total number of +1/+0 counters on Clockwork Beast to be greater than seven. Activate only during your upkeep.

Serra Angel

Flying
Vigilance (Attacking doesn't cause this creature to tap.)

Counterspell

Disenchant

Savannah Lions

Stasis

Players skip their untap steps.
At the beginning of your upkeep, sacrifice Stasis unless you pay {U}.