The Brothers' War Commander

Legendary Creature — Phyrexian Zombie

Intimidate (This creature can't be blocked except by artifact creatures and/or creatures that share a color with it.)
{X}{B}: Put target artifact or creature card with mana value X from an opponent's graveyard onto the battlefield tapped under your control. Then that player mills X cards.

Geth, Lord of the Vault

The List

Instant

Target player sacrifices a creature of their choice and loses 1 life.

Geth's Verdict

Creature — Phyrexian Beast

{T}, Sacrifice a creature: Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Plaguemaw Beast

Commander 2015

({R/P} can be paid with either {R} or 2 life.)
Gain control of target creature an opponent controls until end of turn. Untap that creature. It gains haste until end of turn.

Act of Aggression

Mirrodin Besieged

Poison Counter

Put a -1/-1 counter on target creature. When that creature dies this turn, its controller gets a poison counter.

Virulent Wound

Into the Core

Scars of Mirrodin

Creature — Cat Knight

Flying
When this creature enters, you gain 2 life.

Kemba's Skyguard

Enchantment

Whenever an opponent casts a spell, that player loses 5 life unless they discard a card.

Painful Quandary

Artifact Creature — Masticore

At the beginning of your upkeep, sacrifice this creature unless you discard a card.
{4}, Exile a creature card from your graveyard: This creature deals 4 damage to any target.
{2}: Regenerate this creature.