Careful Study

Skred

Skred deals damage to target creature equal to the number of snow permanents you control.

Blue Elemental Blast

Choose one —
• Counter target red spell.
• Destroy target red permanent.

Volatile Fjord

({T}: Add {U} or {R}.)
Volatile Fjord enters tapped.

Counterspell

Cast into the Fire

Choose one —
• Cast into the Fire deals 1 damage to each of up to two target creatures.
• Exile target artifact.

Refute

Counter target spell. Draw a card, then discard a card.

Accumulated Knowledge

Draw a card, then draw cards equal to the number of cards named Accumulated Knowledge in all graveyards.

Tormod's Crypt

{T}, Sacrifice Tormod's Crypt: Exile target player's graveyard.

Breath Weapon

Breath Weapon deals 2 damage to each non-Dragon creature.

Lórien Revealed

Draw three cards.
Islandcycling {1} ({1}, Discard this card: Search your library for an Island card, reveal it, put it into your hand, then shuffle.)

Tolarian Terror

This spell costs {1} less to cast for each instant and sorcery card in your graveyard.
Ward {2} (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays {2}.)

Frantic Inventory

Draw a card, then draw cards equal to the number of cards named Frantic Inventory in your graveyard.

Spell Pierce

Counter target noncreature spell unless its controller pays {2}.

Snow-Covered Island

Cryptic Serpent

This spell costs {1} less to cast for each instant and sorcery card in your graveyard.

Insectile Aberration

Delver of Secrets

At the beginning of your upkeep, look at the top card of your library. You may reveal that card. If an instant or sorcery card is revealed this way, transform Delver of Secrets.

Delver of Secrets // Insectile Aberration

Deep Analysis

Target player draws two cards.
Flashback—{1}{U}, Pay 3 life. (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Faithless Looting

Draw two cards, then discard two cards.
Flashback {2}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)