---
name: "Arvinox, the Mind Flail"
mana_cost: "{4}{B}{B}{B}"
cmc: 7
type_line: "Legendary Enchantment Creature — Horror"
colors: ["B"]
color_identity: ["B"]
keywords: []
set: "SLD"
set_name: "Secret Lair Drop"
collector_number: "340"
rarity: "mythic"
artist: "Isis"
oracle_id: "9abecd23-a2d9-43c7-8d01-f8afdc53026e"
canonical_url: "https://avascry.com/printing/arvinox-the-mind-flail-sld"
legalities:
  commander: "legal"
  standard: "not_legal"
  modern: "not_legal"
  pioneer: "not_legal"
  legacy: "legal"
  vintage: "legal"
  pauper: "not_legal"
  penny: "not_legal"
---

# Arvinox, the Mind Flail
- **Mana Cost:** `{4}{B}{B}{B}` (CMC: 7)
- **Type:** Legendary Enchantment Creature — Horror
- **Power/Toughness:** 9/9

## Oracle Text
Arvinox isn't a creature unless you control three or more permanents you don't own.
At the beginning of your end step, exile the bottom card of each opponent's library face down. For as long as those cards remain exiled, you may look at them, you may cast permanent spells from among them, and you may spend mana as though it were mana of any color to cast those spells.

## Top 4096-Dim Neural Synergies
1. [Sundering Archaic](/printing/sundering-archaic-sos.md) — Creature — Avatar
2. [Ashiok, Nightmare Weaver](/printing/ashiok-nightmare-weaver-pio.md) — Legendary Planeswalker — Ashiok
3. [Villainous Wealth](/printing/villainous-wealth-ktk.md) — Sorcery
4. [Brainstealer Dragon](/printing/brainstealer-dragon-clb.md) — Creature — Dragon Horror
5. [Theater of Horrors](/printing/theater-of-horrors-prna.md) — Enchantment
6. [Umbris, Fear Manifest](/printing/umbris-fear-manifest-sld.md) — Legendary Creature — Nightmare Horror

## Printing Details
- **Set:** Secret Lair Drop (SLD) #340
- **Rarity:** Mythic
- **Artist:** Isis
- **Total Printings:** 8 across all historical editions

## Format Legalities
Commander: `legal` | Standard: `not_legal` | Modern: `not_legal` | Pioneer: `not_legal` | Legacy: `legal` | Vintage: `legal` | Pauper: `not_legal` | Penny: `not_legal`