Psychic Overload

Enchant permanent
When Psychic Overload enters, tap enchanted permanent.
Enchanted permanent doesn't untap during its controller's untap step.
Enchanted permanent has "Discard two artifact cards: Untap this permanent."

Smallpox

Each player loses 1 life, discards a card, sacrifices a creature of their choice, then sacrifices a land of their choice.

Drain the Well

Befoul

Destroy target land or nonblack creature. It can't be regenerated.

Rain of Tears

Fatal Push

Destroy target creature if it has mana value 2 or less.
Revolt — Destroy that creature if it has mana value 4 or less instead if a permanent you controlled left the battlefield this turn.

Languish

All creatures get -4/-4 until end of turn.

Propaganda

Creatures can't attack you unless their controller pays {2} for each creature they control that's attacking you.