Pioneer

Destroy target artifact you don't control. Overload {4}{R} (You may cast this spell for its overload cost. If you do, change its text by replacing ...

Choose one — • All creatures get -1/-1 until end of turn. • Destroy target enchantment. • Regenerate each creature you control.

Unleash (You may have this creature enter the battlefield with a +1/+1 counter on it. It can't block as long as it has a +1/+1 counter on it.)

At the beginning of each opponent's upkeep, if that player has one or fewer cards in hand, they lose 3 life.

Pack Rat's power and toughness are each equal to the number of Rats you control. {2}{B}, Discard a card: Create a token that's a copy of Pack Rat.

Tap target creature you don't control. Overload {3}{U} (You may cast this spell for its overload cost. If you do, change its text by replacing all ...

As Tablet of the Guilds enters the battlefield, choose two colors. Whenever you cast a spell, if it's at least one of the chosen colors, you gain 1...

Enchant land Enchanted land has "Untap this land during each other player's untap step."

Rakdos Guildgate enters the battlefield tapped. {T}: Add {B} or {R}.

If one or more +1/+1 counters would be put on a creature you control, twice that many +1/+1 counters are put on it instead.

Creatures can't attack you or a planeswalker you control unless their controller pays {X} for each of those creatures, where X is the number of enc...

Defender {T}: Add X mana in any combination of colors, where X is the number of creatures with defender you control.

Target creature you control gets +2/+0 until end of turn. Overload {2}{R} (You may cast this spell for its overload cost. If you do, change its tex...

{T}: Add {C}. {4}, {T}: Target creature can't be blocked this turn.

Prevent all combat damage that would be dealt to you this turn. Populate. (Create a token that's a copy of a creature token you control.)

Populate. Creatures you control gain indestructible until end of turn. (To populate, create a token that's a copy of a creature token you control.)

Instant and sorcery spells you cast cost {1} less to cast.

This spell can't be countered. Counter target spell you don't control. Overload {1}{U}{U}{R} (You may cast this spell for its overload cost. If you...

Target creature you control gets +0/+1 and gains hexproof until end of turn. Overload {1}{U} (You may cast this spell for its overload cost. If you...

Create four 1/1 red Goblin creature tokens.

Defender, flying

If one or more +1/+1 counters would be put on a creature you control, twice that many +1/+1 counters are put on it instead.

Counter target spell.

Players can't gain life. At the beginning of each player's upkeep, that player loses half their life, rounded up.