{B}, Sacrifice a creature: Target opponent reveals their hand. You choose a card from it. That player discards that card. Activate only as a sorcery.

If you control a Swamp, you may sacrifice a creature rather than pay this spell’s mana cost.

Each player exiles two cards from their hand.

You may sacrifice two Mountains rather than pay this spell’s mana cost.

Create two 1/1 red Goblin creature tokens.

{3}, {T}: Search your library for a Goblin permanent card, put it onto the battlefield, then shuffle.

If an opponent controls an Island and you control a Mountain, you may cast this spell without paying its mana cost.

Destroy target artifact.

Mogg Toady can’t attack unless you control more creatures than defending player.

Mogg Toady can’t block unless you control more creatures than attacking player.

Whenever Mossdog becomes the target of a spell or ability an opponent controls, put a +1/+1 counter on Mossdog.

{B}{B}, Pay half your life, rounded up: Destroy target nonblack creature. It can’t be regenerated.

Trample

When Nesting Wurm enters the battlefield, you may search your library for up to three cards named Nesting Wurm, reveal them, put them into your hand, then shuffle.

{W}, {T}, Discard a card: Target creature can’t attack this turn.

Whenever a creature you control blocks, you gain 2 life.

Target creature can’t attack or block this turn.

{T}: All damage that would be dealt to target creature this turn by a source of your choice is dealt to Oracle’s Attendants instead.

Protection from red

As Overlaid Terrain enters the battlefield, sacrifice all lands you control.

Lands you control have “{T}: Add two mana of any one color.”

Search your library for up to three cards with the same name as target creature, reveal them, put them into your hand, then shuffle.

Until end of turn, if a player taps a nonbasic land for mana, it produces colorless mana instead of any other type.

Enchant creature

Fading 1 (This enchantment enters the battlefield with one fade counter on it. At the beginning of your upkeep, remove a fade counter from it. If you can’t, sacrifice it.)

Enchanted creature gets +3/+2.

When Parallax Dementia leaves the battlefield, destroy enchanted creature. That creature can’t be regenerated.

{1}, {T}, Sacrifice Parallax Inhibitor: Put a fade counter on each permanent with fading you control.

Fading 5 (This enchantment enters the battlefield with five fade counters on it. At the beginning of your upkeep, remove a fade counter from it. If you can’t, sacrifice it.)

Remove a fade counter from Parallax Nexus: Target opponent exiles a card from their hand. Activate only as a sorcery.

When Parallax Nexus leaves the battlefield, each player returns to their hand all cards they own exiled with Parallax Nexus.