Urza's Bauble

{T}, Sacrifice Urza's Bauble: Look at a card at random in target player's hand. You draw a card at the beginning of the next turn's upkeep.

Priest of Titania

{T}: Add {G} for each Elf on the battlefield.

Mind Swords

If you control a Swamp, you may sacrifice a creature rather than pay this spell's mana cost.
Each player exiles two cards from their hand.

Amulet of Kroog

{2}, {T}: Prevent the next 1 damage that would be dealt to any target this turn.

Fellwar Stone

{T}: Add one mana of any color that a land an opponent controls could produce.

Multani's Presence

Whenever a spell you've cast is countered, draw a card.

Urza's Mine

{T}: Add {C}. If you control an Urza's Power-Plant and an Urza's Tower, add {C}{C} instead.

Muscle Sliver

Dark Ritual

Rackling

At the beginning of each opponent's upkeep, Rackling deals X damage to that player, where X is 3 minus the number of cards in their hand.

Spike Feeder

Spike Feeder enters with two +1/+1 counters on it.
{2}, Remove a +1/+1 counter from Spike Feeder: Put a +1/+1 counter on target creature.
Remove a +1/+1 counter from Spike Feeder: You gain 2 life.

Broken Fall

Return Broken Fall to its owner's hand: Regenerate target creature.

Rancor

Enchant creature
Enchanted creature gets +2/+0 and has trample.
When Rancor is put into a graveyard from the battlefield, return Rancor to its owner's hand.

Foratog

{G}, Sacrifice a Forest: Foratog gets +2/+2 until end of turn.

Worldly Tutor

Search your library for a creature card, reveal it, then shuffle and put the card on top.

Lull

Prevent all combat damage that would be dealt this turn.
Cycling {2} ({2}, Discard this card: Draw a card.)

Rootwater Depths

{T}: Add {C}.
{T}: Add {U} or {B}. Rootwater Depths doesn't untap during your next untap step.

Belbe's Portal

As Belbe's Portal enters, choose a creature type.
{3}, {T}: You may put a creature card of the chosen type from your hand onto the battlefield.

Deranged Hermit

Echo {3}{G}{G} (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)
When Deranged Hermit enters, create four 1/1 green Squirrel creature tokens.
Squirrel creatures get +1/+1.

Crop Rotation

As an additional cost to cast this spell, sacrifice a land.
Search your library for a land card, put that card onto the battlefield, then shuffle.

Cateran Summons

Search your library for a Mercenary card, reveal that card, put it into your hand, then shuffle.

Winter Blast

Tap X target creatures. Winter Blast deals 2 damage to each of those creatures with flying.

Crossbow Ambush

Creatures you control gain reach until end of turn. (They can block creatures with flying.)

Tsunami

Spike Colony

Spike Colony enters with four +1/+1 counters on it.
{2}, Remove a +1/+1 counter from Spike Colony: Put a +1/+1 counter on target creature.