Azorius Guildmage

{2}{W}: Tap target creature.
{2}{U}: Counter target activated ability. (Mana abilities can't be targeted.)

Benalish Trapper

Blinding Mage

Ith, High Arcanist

Vigilance
{T}: Untap target attacking creature. Prevent all combat damage that would be dealt to and dealt by that creature this turn.
Suspend 4—{W}{U}

Burnished Hart

{3}, Sacrifice this creature: Search your library for up to two basic land cards, put them onto the battlefield tapped, then shuffle.

Dawnglare Invoker

Flying
{8}: Tap all creatures target player controls.

Runeclaw Bear

Gideon's Lawkeeper

Sunblast Angel

Flying
When this creature enters, destroy all tapped creatures.