The owner of target permanent shuffles it into their library, then reveals the top card of their library. If it's a permanent card, they put it onto the battlefield.
{X}{U}{R}
Epic Experiment
Sorcery
Exile the top X cards of your library. You may cast instant and sorcery spells with mana value X or less from among them without paying their mana costs. Then put all cards exiled this way that weren't cast into your graveyard.
{2}{U}{U}{U}
Future Sight
Enchantment
Play with the top card of your library revealed.
You may play lands and cast spells from the top of your library.
{3}{R}{R}
Galvanoth
Creature - Beast
At the beginning of your upkeep, you may look at the top card of your library. You may cast it without paying its mana cost if it's an instant or sorcery spell.
3 /
3
{3}{U}{R}
Hypersonic Dragon
Creature - Dragon
Flying, haste
You may cast sorcery spells as though they had flash. (You may cast them any time you could cast an instant.)
4 /
4
{U}
Index
Sorcery
Look at the top five cards of your library, then put them back in any order.
{4}{R}{R}
Into the Maw of Hell
Sorcery
Destroy target land. Into the Maw of Hell deals 13 damage to target creature.
{X}{U}{U}{R}
Invoke the Firemind
Sorcery
Choose one --
• Draw X cards.
• Invoke the Firemind deals X damage to any target.
{2}{U}{U}
Leyline of Anticipation
Enchantment
If Leyline of Anticipation is in your opening hand, you may begin the game with it on the battlefield.
You may cast spells as though they had flash.
{3}{R}{R}
Mana Geyser
Sorcery
Add {R} for each tapped land your opponents control.
{4}{U}{R}
Melek, Izzet Paragon
Legendary Creature - Weird Wizard
Play with the top card of your library revealed.
You may cast instant and sorcery spells from the top of your library.
Whenever you cast an instant or sorcery spell from your library, copy it. You may choose new targets for the copy.
2 /
4
{1}{R}
Mizzium Mortars
Sorcery
Mizzium Mortars deals 4 damage to target creature you don't control.
Overload {3}{R}{R}{R} (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")
{U}
Mystical Tutor
Instant
Search your library for an instant or sorcery card, reveal it, then shuffle and put that card on top.
{1}{U}{R}
Nivix Cyclops
Creature - Cyclops
Defender
Whenever you cast an instant or sorcery spell, Nivix Cyclops gets +3/+0 until end of turn and can attack this turn as though it didn't have defender.
1 /
4
--
Nivix, Aerie of the Firemind
Land
{T}: Add {C}.
{2}{U}{R}, {T}: Exile the top card of your library. Until your next turn, you may cast it if it's an instant or sorcery spell.
{U/R}
Nivmagus Elemental
Creature - Elemental
Exile an instant or sorcery spell you control: Put two +1/+1 counters on Nivmagus Elemental. (That spell won't resolve.)
1 /
2
{3}{U}
Polymorph
Sorcery
Destroy target creature. It can't be regenerated. Its controller reveals cards from the top of their library until they reveal a creature card. The player puts that card onto the battlefield, then shuffles all other cards revealed this way into their library.
{2}{U}{R}
Ral Zarek
Legendary Planeswalker - Ral
+1: Tap target permanent, then untap another target permanent.
-2: Ral Zarek deals 3 damage to any target.
-7: Flip five coins. Take an extra turn after this one for each coin that comes up heads.
L:
4
{2}{U}
Reminisce
Sorcery
Target player shuffles their graveyard into their library.
{2}{U}{U}
Rewind
Instant
Counter target spell. Untap up to four lands.
{1}{U}
Sage Owl
Creature - Bird
Flying
When Sage Owl enters the battlefield, look at the top four cards of your library, then put them back in any order.
1 /
1
{1}{R}
Searing Spear
Instant
Searing Spear deals 3 damage to any target.
{8}{R}
Searing Wind
Instant
Searing Wind deals 10 damage to any target.
{2}{U}{U}
Sleep
Sorcery
Tap all creatures target player controls. Those creatures don't untap during that player's next untap step.
{1}{U}
Snap
Instant
Return target creature to its owner's hand. Untap up to two lands.
{5}{U}
Spelltwine
Sorcery
Exile target instant or sorcery card from your graveyard and target instant or sorcery card from an opponent's graveyard. Copy those cards. Cast the copies if able without paying their mana costs. Exile Spelltwine.
{7}
Sphinx-Bone Wand
Artifact
Whenever you cast an instant or sorcery spell, you may put a charge counter on Sphinx-Bone Wand. If you do, Sphinx-Bone Wand deals damage equal to the number of charge counters on it to any target.
{8}{U}{U}
Time Stretch
Sorcery
Target player takes two extra turns after this one.