Silverglade Elemental

When Silverglade Elemental enters the battlefield, you may search your library for a Forest card and put that card onto the battlefield. If you do, shuffle your library.

Mirrored Depths

Whenever a player casts a spell, that player flips a coin. If the player loses the flip, counter that spell.
Whenever you roll , target player reveals the top card of their library. If it’s a nonland card, you may cast it without paying its mana cost.

Alluring Siren

: Target creature an opponent controls attacks you this turn if able.

Igneous Pouncer

Haste
Swampcycling , mountaincycling (, Discard this card: Search your library for a Swamp or Mountain card, reveal it, put it into your hand, then shuffle your library.)

Tainted Sigil

, Sacrifice Tainted Sigil: You gain life equal to the total life lost by all players this turn. (Damage causes loss of life.)

Ardent Plea

Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.)
Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom of your library in a random order.)

Thought Hemorrhage

Choose a nonland card name. Target player reveals their hand. Thought Hemorrhage deals 3 damage to that player for each card with the chosen name revealed this way. Search that player’s graveyard, hand, and library for all cards with that name and exile them. Then that player shuffles their library.

Lord of the Pit

Flying, trample
At the beginning of your upkeep, sacrifice a creature other than Lord of the Pit. If you can’t, Lord of the Pit deals 7 damage to you.

Kaleidostone

When Kaleidostone enters the battlefield, draw a card.
, , Sacrifice Kaleidostone: Add .

Vectis Agents

: Vectis Agents gets -2/-0 until end of turn and can’t be blocked this turn.

Master Transmuter

, , Return an artifact you control to its owner’s hand: You may put an artifact card from your hand onto the battlefield.

Cone of Flame

Cone of Flame deals 1 damage to any target, 2 damage to another target, and 3 damage to a third target.

Windwright Mage

Lifelink (Damage dealt by this creature also causes you to gain that much life.)
Windwright Mage has flying as long as an artifact card is in your graveyard.

Sphinx Sovereign

Flying
At the beginning of your end step, you gain 3 life if Sphinx Sovereign is untapped. Otherwise, each opponent loses 3 life.

Favor of the Overbeing

Enchant creature
As long as enchanted creature is green, it gets +1/+1 and has vigilance.
As long as enchanted creature is blue, it gets +1/+1 and has flying.

Overbeing of Myth

Overbeing of Myth’s power and toughness are each equal to the number of cards in your hand.
At the beginning of your draw step, draw an additional card.

Bloom Tender

: For each color among permanents you control, add one mana of that color.