Landfall — Whenever a land you control enters, this creature gets +1/+1 until end of turn.

Target creature gets -2/-2 until end of turn.

When this creature enters, create a Treasure token. (It's an artifact with ", Sacrifice this token: Add one mana of any color.")
This creature can't be blocked by more than one creature.

When you cast this spell while you control a creature, you may copy this spell.
Each player sacrifices a creature of their choice. Each opponent loses 1 life and you gain 1 life.

This land enters tapped.
: Add or .
, : Surveil 1. (Look at the top card of your library. You may put it into your graveyard.)

Target creature you control deals damage equal to its power to target creature an opponent controls.

Whenever you cast a noncreature spell, this creature gets +3/+0 until end of turn.

When this enchantment enters and at the beginning of your upkeep, you lose 1 life and create a Clue token. (It's an artifact with ", Sacrifice this token: Draw a card.")
Whenever you attack, put X +1/+1 counters on target attacking creature, where X is the number of permanents you've sacrificed this turn. If X is three or more, that creature gains lifelink until end of turn.

: This creature gets +1/+0 and gains menace until end of turn. (It can't be blocked except by two or more creatures.)

When this creature enters and whenever you cast a spell with mana value 4 or greater, you may discard a card. If you do, draw a card.

Whenever another creature you control with power 3 or greater enters, you may draw a card.

This land enters tapped.
: Add or .
, : Surveil 1. (Look at the top card of your library. You may put it into your graveyard.)

, Discard a card: Draw a card.
, , Sacrifice Professor Zei: Return target instant or sorcery card from your graveyard to your hand. Activate only during your turn.

Target creature you control gains deathtouch and lifelink until end of turn. When that creature dies this turn, create a 2/2 black and green Elf creature token.

Mill three cards, then return an instant or sorcery card from your graveyard to your hand.
Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Fire Prophecy deals 3 damage to target creature. You may put a card from your hand on the bottom of your library. If you do, draw a card.

Whenever you cast a multicolored spell, put a +1/+1 counter on this creature.

Whenever you cast an instant or sorcery spell, this creature gets +3/+0 until end of turn.

When this creature enters, create two Food tokens. (They're artifacts with ", , Sacrifice this token: You gain 3 life.")
Basic landcycling (, Discard this card: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.)

This artifact enters with two +1/+1 counters on it.
: Move a +1/+1 counter from this artifact onto target creature you control. Activate only as a sorcery.
Whenever a modified creature you control leaves the battlefield, put a +1/+1 counter on this artifact. (Equipment, Auras you control, and counters are modifications.)