Cosmium Confluence
Sorcery
Choose three. You may choose the same mode more than once.
• Search your library for a Cave card, put it onto the battlefield tapped, then shuffle.
• Put three +1/+1 counters on a Cave you control. It becomes a 0/0 Elemental creature with haste. It's still a land.
• Destroy target enchantment.
- CMC
- 5
- Mana cost
- Color identity
- G
- Rarity
- rare
- Set
- The Lost Caverns of Ixalan
- Price
- $0.20
- EDHREC rank
- #14685
Cosmium Confluence puts three +1/+1 counters on a creature, makes three Treasure tokens, or draws you a card — and you pick any combination of those three modes, potentially all three on one target. Six mana for the full package is the cost, and in decks that want all of those effects simultaneously, it earns its slot without argument.
Best Commanders
Commanders with the highest synergy
Radha, Heir to Keld
Radha, Heir to Keld attacks into combat mana and wants every creature to be as large as possible, so Cosmium Confluence pulling triple duty — counters, Treasures for acceleration, card draw — maps cleanly onto what Radha is already doing.
Ruby, Daring Tracker
Ruby, Daring Tracker cares about +1/+1 counters and resource accumulation, making Cosmium Confluence a flexible source of both bodies-growth and Treasures that feeds the engine without requiring a specific board state.
Format Analysis
Where it lives, where it can’t
| Format | Verdict |
|---|---|
| commander | legal |
| legacy | legal |
| modern | legal |
| pioneer | legal |
| standard | legal |
| vintage | legal |
| pauper | not legal |
| oathbreaker | legal |
Commander is where Cosmium Confluence earns its keep — the singleton format's demand for flexible, multi-mode cards that pull double or triple duty makes the confluence structure genuinely valuable, especially in Gruul decks that want counters, ramp, and refueling on one card. In 60-card formats like Modern and Pioneer, it competes against narrower but more efficient options, and six mana is a steep ask in those faster environments. Legacy and Vintage are too hostile to six-mana sorceries without immediate game-warping impact. Standard-legal play is where it may see the most casual table time outside Commander.
Key Combos
Combo lines featuring this card
Price Context
Current price
$0.20 bulk tier
At $0.20, Cosmium Confluence is bulk — pick it up without hesitation if it fits the deck. Bulk rares with narrow homes rarely climb unless a format shift pushes them into competitive play, which this card's six-mana ceiling makes unlikely.
Explore
Sources
Mentioned
Updated . Data from Scryfall, EDHREC, and Commander Spellbook.