---
name: "Archelos, Lagoon Mystic"
mana_cost: "{1}{B}{G}{U}"
cmc: 4
type_line: "Legendary Creature — Turtle Shaman"
colors: []
color_identity: ["B", "G", "U"]
keywords: []
set: "PRM"
set_name: "Magic Online Promos"
collector_number: "86334"
rarity: "rare"
artist: "Dan Murayama Scott"
oracle_id: "fd19a009-d1ab-4148-a829-3d4c3af1b0b2"
canonical_url: "https://avascry.com/printing/archelos-lagoon-mystic-prm"
legalities:
  commander: "legal"
  standard: "not_legal"
  modern: "not_legal"
  pioneer: "not_legal"
  legacy: "legal"
  vintage: "legal"
  pauper: "not_legal"
  penny: "not_legal"
---

# Archelos, Lagoon Mystic
- **Mana Cost:** `{1}{B}{G}{U}` (CMC: 4)
- **Type:** Legendary Creature — Turtle Shaman

## Oracle Text
As long as Archelos is tapped, other permanents enter tapped.
As long as Archelos is untapped, other permanents enter untapped.

## Top 4096-Dim Neural Synergies
1. [Root Maze](/printing/root-maze-10e.md) — Enchantment
2. [Silt Crawler](/printing/silt-crawler-pcy.md) — Creature — Beast
3. [Orb of Dreams](/printing/orb-of-dreams-bok.md) — Artifact
4. [Loxodon Gatekeeper](/printing/loxodon-gatekeeper-rav.md) — Creature — Elephant Soldier
5. [Frozen Aether](/printing/frozen-aether-plc.md) — Enchantment
6. [Chimeric Idol](/printing/chimeric-idol-vma.md) — Artifact

## Printing Details
- **Set:** Magic Online Promos (PRM) #86334
- **Rarity:** Rare
- **Artist:** Dan Murayama Scott
- **Total Printings:** 4 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`

## Official Rulings
- *(2020-11-10)* Archelos's abilities don't apply to itself as it enters the battlefield, nor do they apply to any permanents entering the battlefield at the same time.
- *(2020-11-10)* If more than one Archelos is on the battlefield, the controller of an entering permanent chooses how to order the replacement effects.
- *(2020-11-10)* If another replacement effect says that a permanent enters the battlefield tapped while Archelos is untapped, the entering permanent's controller chooses whether the permanent enters tapped or untapped. If a permanent is simply put onto the battlefield tapped without a replacement effect being applied, it always enters untapped if Archelos is untapped.