Spells and abilities your opponents control can't cause you to discard cards or sacrifice permanents. [+1]: Choose a nonland card name, then reveal the top four cards of your library. Put all cards with the chosen name from among them into your hand and the rest into your graveyard. [–3]: Return target card from your graveyard to your hand.
[+1]: Choose up to two target creatures. Until your next turn, whenever either of those creatures deals combat damage, you draw a card. [–2]: Tap up to two target nonland permanents. They don't untap during their controller's next untap step. [–7]: Draw three cards. You get an emblem with "You may cast spells from your hand without paying their mana costs."
Soulbond As long as Tandem Lookout is paired with another creature, each of those creatures has "Whenever this creature deals damage to an opponent, draw a card."
{T}, Sacrifice a Goblin: Tar Pitcher deals 2 damage to any target.
"Auntie Grub had caught a goat, a bleating doe that still squirmed in her arms. At the same time, her warren decided to share with her a sensory greeting of hot tar . . . ." —A tale of Auntie Grub
The amorphous, magically animated residue known as the Fathom Sludge lurks in the Hagra Cistern, attacking its prey with pseudopods and dragging it down to be digested.
"After Auntie brushed the soot from her eyes, she discovered something wonderful: the fire had turned the goat into something that smelled delicious." —A tale of Auntie Grub