mtg.wtf

All Sliver creatures have "Whenever this creature is dealt damage, put a +1/+1 counter on it."

Whenever Fungusaur is dealt damage, put a +1/+1 counter on it.

Reach
Morbid — When Funnel-Web Recluse enters the battlefield, if a creature died this turn, investigate.

At the beginning of your end step, conjure a card named Slimy Dualleech onto the battlefield if you control no Leeches. Otherwise, put a +1/+1 counter on each Leech you control.
{T}, Sacrifice a creature: Add an amount of {G} equal to the sacrificed creature's power.

Furious deals 3 damage to each creature without flying.

Target creature gets +3/+0 and gains first strike until end of turn. Scry 1.

Furious Reprisal deals 2 damage to each of two targets.

At the beginning of your end step, if you control a creature with power 4 or greater, exile the top card of your library. You may play that card until you exile another card with Furious Rise.

Trample
At the beginning of your end step, put a +1/+1 counter on Furious Spinesplitter for each opponent that was dealt damage this turn.

{R}: Target creature can't be regenerated this turn.

Whenever you sacrifice another permanent, you may pay {2}. If you do, Furnace Celebration deals 2 damage to any target.

{1}{R}: Furnace Gremlin gets +1/+0 until end of turn.
When Furnace Gremlin dies, incubate X, where X is its power.

Haste
Mountaincycling {2}

When you planeswalk to Furnace Layer or at the beginning of your upkeep, select target player at random. That player discards a card. If that player discards a land card this way, they lose 3 life.
Whenever chaos ensues, you may destroy target nonland permanent.

Menace
At the beginning of each player's upkeep, Furnace Punisher deals 2 damage to that player unless they control two or more basic lands.

Gain control of target creature until end of turn. Untap that creature. Until end of turn, it gains haste and "Whenever this creature deals combat damage to a player or battle, create a Treasure token."

{1}, Sacrifice Furnace Skullbomb: Draw a card.
{1}{R}, Sacrifice Furnace Skullbomb: Put two oil counters on target artifact or creature you control. Draw a card. Activate only as a sorcery.

Furnace Strider enters the battlefield with two oil counters on it.
Remove an oil counter from Furnace Strider: Target creature you control gains haste until end of turn.

Flying
{R}: Furnace Whelp gets +1/+0 until end of turn.

Whenever Furnace-Blessed Conqueror attacks, create a tapped and attacking token that's a copy of it. Put a +1/+1 counter on that token for each +1/+1 counter on Furnace-Blessed Conqueror. Sacrifice that token at the beginning of the next end step.

Enchant creature
Enchanted creature gets +2/+2 and attacks each combat if able.

Vigilance
{2}, {T}: Draw a card, then discard a card.

Furtive Courier can't be blocked as long as you've sacrificed an artifact this turn.
Whenever Furtive Courier attacks, draw a card, then discard a card.

Skulk

Double strike
When Fury enters the battlefield, it deals 4 damage divided as you choose among any number of target creatures and/or planeswalkers.
Evoke—Exile a red card from your hand.