Trail of the Mage-Rings

Instant and sorcery spells have rebound. (The spell’s controller exiles the spell as it resolves if they cast it from their hand. At the beginning of that player’s next upkeep, they may cast that card from exile without paying its mana cost.)
Whenever you roll , you may search your library for an instant or sorcery card, reveal it, put it into your hand, then shuffle your library.

Stensia

Whenever a creature deals damage to one or more players for the first time each turn, put a +1/+1 counter on it.
Whenever you roll , each creature you control gains “: This creature deals 1 damage to target player or planeswalker” until end of turn.

Hedron Fields of Agadeem

Creatures with power 7 or greater can’t attack or block.
Whenever you roll , create a 7/7 colorless Eldrazi creature token with annihilator 1. (Whenever it attacks, defending player sacrifices a permanent.)

Havengul Skaab

Whenever Havengul Skaab attacks, return another creature you control to its owner’s hand.

Spectral Prison

Enchant creature
Enchanted creature doesn’t untap during its controller’s untap step.
When enchanted creature becomes the target of a spell, sacrifice Spectral Prison.

Abundant Growth

Enchant land
When Abundant Growth enters the battlefield, draw a card.
Enchanted land has “: Add one mana of any color.”

Kessig Recluse

Reach (This creature can block creatures with flying.)
Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)

Drogskol Reaver

Flying, double strike, lifelink
Whenever you gain life, draw a card.

Geistcatcher’s Rig

When Geistcatcher’s Rig enters the battlefield, you may have it deal 4 damage to target creature with flying.

Heretic’s Punishment

: Choose any target, then mill three cards. Heretic’s Punishment deals damage to that permanent or player equal to the highest converted mana cost among the milled cards.

Travel Preparations

Put a +1/+1 counter on each of up to two target creatures.
Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Tree of Redemption

Defender
: Exchange your life total with Tree of Redemption’s toughness.

Sundial of the Infinite

, : End the turn. Activate this ability only during your turn. (Exile all spells and abilities from the stack. Discard down to your maximum hand size. Damage wears off, and “this turn” and “until end of turn” effects end.)

Scythe Specter

Flying
Whenever Scythe Specter deals combat damage to a player, each opponent discards a card. Each player who discarded a card with the highest converted mana cost among cards discarded this way loses life equal to that converted mana cost.

Ancient Stirrings

Look at the top five cards of your library. You may reveal a colorless card from among them and put it into your hand. Then put the rest on the bottom of your library in any order. (Cards with no colored mana in their mana costs are colorless. Lands are also colorless.)