Mystery Booster 2

Legendary Creature — Phyrexian Eldrazi

({C/P} can be paid with either {C} or 2 life.)
When you cast this spell, each opponent gets two poison counters, then each opponent with more than two cards in hand discards cards equal to the difference.
Annihinfect (Whenever this creature attacks, defending player sacrifices a permanent for each poison counter they have.)

Kozilek, Compleated

Creature — Human Wizard

If a player would draw a card except the first one they draw in each of their draw steps, that player discards a card instead. If the player discards a card this way, they draw a card. If the player doesn't discard a card this way, they mill a card.

Magus of the Chains

Instant

The player who wins this game also wins the match. (A player may concede the game at any time. If the game ends while this spell is on the stack, it never resolves.)
Cycling {1}

Snap Judgment

Enchantment — Aura

Enchant zone (Battlefield, command, exile, and stack are shared zones. Each player has their own graveyard, hand, and library zones.)
Whenever one or more cards enter or leave enchanted zone, Zone of Flame deals 1 damage to each opponent. (Tokens aren't cards.)

Zone of Flame

Legendary Creature — Elemental Otter

Companion — Your starting deck contains no cards with a silver, gold, orange, or purple expansion symbol. (If this card is your chosen companion, you may put it into your hand from outside the game for {3} as a sorcery.)
When Lutri, Pauper Otter enters the battlefield, discard your hand, then draw three cards.

Lutri, Pauper Otter

Land

Lazotep Archway enters the battlefield tapped.
{T}: Add {W} or {B}.
Eternalize {3}{W}{B} ({3}{W}{B}, Exile this card from your graveyard: Create a token that's a copy of it, except it's a 4/4 black Zombie creature and loses all other card types. Eternalize only as a sorcery. And don't forget it still enters tapped!)