: Draw a card, then exile a card from your hand and put a number of time counters on it equal to its mana value. It gains "When the last time counter is removed from this card, if it's exiled, you may cast it without paying its mana cost. If you cast a creature spell this way, it gains haste until end of turn." Then remove a time counter from each other card you own in exile.

At the beginning of your upkeep, put a +1/+1 counter on each creature you control with modular.

Modular 6 (This creature enters with six +1/+1 counters on it. When it dies, you may put its +1/+1 counters on target artifact creature.)

Flying

Whenever a permanent is turned face up, put a +1/+1 counter on Aven Farseer.

, Pay 1 life: Draw a card. Activate only if three or more cards left your graveyard this turn or if you've sacrificed a Food this turn.

When Cascade Seer enters, scry X, where X is the number of creatures in your party. (Your party consists of up to one each of Cleric, Rogue, Warrior, and Wizard.)

Flying

When Cloudkin Seer enters, draw a card.

When Denethor, Stone Seer enters, scry 2.

, , Sacrifice Denethor: Target player becomes the monarch. Denethor deals 3 damage to any target.

Flying

At the beginning of your upkeep, each player reveals the top card of their library, loses life equal to that card's mana value, then puts it into their hand.

Flying

When Faerie Seer enters, scry 2. (Look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.)

: Target creature gets +1/-1 until end of turn.

When Gleaming Overseer enters, amass Zombies 1. (Put a +1/+1 counter on an Army you control. It's also a Zombie. If you don't control an Army, create a 0/0 black Zombie Army creature token first.)

Zombie tokens you control have hexproof and menace.

Flying

Landfall — Whenever a land you control enters, other creatures you control get +1/+0 until end of turn. If that land is a Swamp, those creatures get +2/+0 until end of turn instead.

Flying, deathtouch, lifelink

: Each creature you control with flying, deathtouch, and/or lifelink gets +1/+0 until end of turn.

, : Reveal any number of green cards in your hand. Target creature gets +X/+X until end of turn, where X is the number of cards revealed this way.

Kicker (You may pay an additional as you cast this spell.)

Haste

When Keldon Overseer enters, if it was kicked, gain control of target creature until end of turn. Untap that creature. It gains haste until end of turn.

When Malcator, Purity Overseer enters, create a 3/3 colorless Phyrexian Golem artifact creature token.

At the beginning of your end step, if three or more artifacts entered the battlefield under your control this turn, create a 3/3 colorless Phyrexian Golem artifact creature token.

First strike

During your turn, creature tokens you control get +1/+0 and have first strike.

: Create a 1/1 colorless Phyrexian Mite artifact creature token with toxic 1 and "This creature can't block." (Players dealt combat damage by it also get a poison counter. can be paid with either or 2 life.)

When Nissa, Vastwood Seer enters, you may search your library for a basic Forest card, reveal it, put it into your hand, then shuffle.

Whenever a land you control enters, if you control seven or more lands, exile Nissa, then return her to the battlefield transformed under her owner's control.

Flying

When Overseer of the Damned enters, you may destroy target creature.

Whenever a nontoken creature an opponent controls dies, create a tapped 2/2 black Zombie creature token.

Inspired — Whenever Pain Seer becomes untapped, reveal the top card of your library and put that card into your hand. You lose life equal to that card's mana value.

When Peema Aether-Seer enters, you get an amount of (energy counters) equal to the greatest power among creatures you control.

Pay : Target creature blocks this turn if able.

Menace (This creature can't be blocked except by two or more creatures.)

Whenever one or more artifacts and/or creatures you control are put into a graveyard from the battlefield, surveil 1. (Look at the top card of your library. You may put that card into your graveyard.)

: Add .

, : Scry 1. (Look at the top card of your library. You may put that card on the bottom.)

Your opponents play with their hands revealed.

Sacrifice Seer's Vision: Look at target player's hand and choose a card from it. That player discards that card. Activate only as a sorcery.

Flying, vigilance

At the beginning of your end step, if you gained or lost life this turn, target opponent loses 3 life unless they sacrifice a nonland permanent of their choice or discard a card.

Flying

Shadow (This creature can block or be blocked by only creatures with shadow.)

: Creatures with shadow get +1/+0 until end of turn and creatures without shadow get -1/-0 until end of turn.

( represents colorless mana.)

When Thought-Knot Seer enters, target opponent reveals their hand. You choose a nonland card from it and exile that card.

When Thought-Knot Seer leaves the battlefield, target opponent draws a card.

, : Choose another target creature. Put a number of +1/+1 counters on it equal to the amount of life you gained this turn or the amount of life you lost this turn, whichever is greater. Activate only as a sorcery.