mtg.wtf

Create a 3/3 green Beast creature token for each creature put into your graveyard from the battlefield this turn.

Counter target spell, then proliferate.

Sacrifice Fume Spitter: Put a -1/-1 counter on target creature.

Whenever Furnace Scamp deals combat damage to a player, you may sacrifice it. If you do, Furnace Scamp deals 3 damage to that player.

Target player sacrifices a creature and loses 1 life.

Intimidate
{X}{B}: Put target artifact or creature card with mana value X from an opponent's graveyard onto the battlefield under your control tapped. Then that player mills X cards.

Look at target player's hand.
Draw a card.

Whenever a creature deals combat damage to one of your opponents, its controller may pay 1 life. If they do, they draw a card.
{4}{B}{B}{B}, Discard X cards: Exile the top X cards of target opponent's library. You may play lands and cast spells from among cards exiled this way without paying their mana costs.

Mountainwalk

Destroy target artifact. Its controller loses 1 life.

First strike, deathtouch
Whenever a creature an opponent controls dies, you may return target artifact card from your graveyard to your hand.

Infect

Enchant creature
Enchanted creature has infect.
At the beginning of your upkeep, put a -1/-1 counter on enchanted creature.
When Glistening Oil is put into a graveyard from the battlefield, return Glistening Oil to its owner's hand.

Sacrifice Gore Vassal: Put a -1/-1 counter on target creature. Then if that creature's toughness is 1 or greater, regenerate it.

Equipped creature gets +2/+2 and has infect.
Whenever Grafted Exoskeleton becomes unattached from a permanent, sacrifice that permanent.
Equip {2}

Search your library for a green creature card with mana value X or less, put it onto the battlefield, then shuffle. Shuffle Green Sun's Zenith into its owner's library.

{1}, {T}, Sacrifice Gremlin Mine: It deals 4 damage to target artifact creature.
{1}, {T}, Sacrifice Gremlin Mine: Remove up to four charge counters from target noncreature artifact.

Put a -1/-1 counter on target creature, then proliferate.

Put target creature card from an opponent's graveyard onto the battlefield under your control. It gains haste. Exile it at the beginning of the next end step. If that creature would leave the battlefield, exile it instead of putting it anywhere else.

Gut Shot deals 1 damage to any target.

Infect
Other creatures you control with infect get +1/+1.
Whenever you cast a creature spell with infect, target player gets a poison counter.

{X}{B/P}: Remove up to X counters from target permanent. For each counter removed this way, Hex Parasite gets +1/+0 until end of turn.

Target player discards a card, then mills a card.

As an additional cost to cast this spell, sacrifice a creature.
All creatures get -X/-X until end of turn, where X is the sacrificed creature's power.

Infect
When Ichor Rats enters the battlefield, each player gets a poison counter.