Reservoir Walker
Artifact Creature — Construct
When this creature enters, you gain 3 life and get (three energy counters).
- CMC
- 5
- Mana cost
- Color identity
- C
- Rarity
- common
- Set
- Kaladesh Remastered
- Price
- —
- EDHREC rank
- #22609
Reservoir Walker enters with a +1/+1 counter and gains you 2 life, making every copy or flicker immediately relevant on the board. The five-mana cost is real, but in a shell built around Delina, Wild Mage or any token-doubling engine, each additional copy stacks counters and life at a pace opponents can't ignore.
Format Analysis
Where it lives, where it can’t
| Format | Verdict |
|---|---|
| commander | legal |
| legacy | legal |
| modern | legal |
| pioneer | legal |
| standard | not legal |
| vintage | legal |
| pauper | legal |
| oathbreaker | legal |
Reservoir Walker is a Commander card through and through — the life gain and counter accumulation are too incremental for the faster competitive formats, where five mana for a 2/3 with upside doesn't clear the bar in Modern, Legacy, or Vintage. Pauper is its only other realistic home, where the body and life gain can be relevant in a slower, grindier environment. In Commander, Reservoir Walker slots cleanly into any deck that generates multiple enter-the-battlefield triggers — blink, copy, or token strategies all convert its modest on-entry effect into a repeatable engine.
Key Combos
Combo lines featuring this card




Delina, Wild MageLightning RunnerHarmonic ProdigyReservoir Walker
Infinite combat phases; Infinite copies of creatures you control; Infinite creature tokens; Infinite energy counters; Infinite ETB; Infinite lifegain; Infinite lifegain triggers; Infinite LTB; Infinite mana creatures you control can produce; Infinite untap of creatures you control
View on Commander Spellbook ↗



Wulfgar of Icewind DaleDelina, Wild MageLightning RunnerReservoir Walker
Infinite combat phases; Infinite copies of creatures you control; Infinite creature tokens; Infinite energy counters; Infinite ETB; Infinite lifegain; Infinite lifegain triggers; Infinite LTB; Infinite mana creatures you control can produce; Infinite untap of creatures you control
View on Commander Spellbook ↗



Audacious ReshapersMortuaryIntruder AlarmReservoir Walker
Infinite death triggers; Infinite energy counters; Infinite ETB; Infinite lifegain; Infinite lifegain triggers; Infinite LTB; Infinite mana creatures you control can produce; Infinite sacrifice triggers; Infinite untap of creatures; Infinite untap of creatures you control
View on Commander Spellbook ↗



Emiel the BlessedLightning RunnerReservoir WalkerCircle of Dreams Druid
Infinite combat phases; Infinite ETB; Infinite lifegain; Infinite lifegain triggers; Infinite LTB
View on Commander Spellbook ↗Price Context
Current price
unknown tier
Pricing data for Reservoir Walker isn't currently available, so check Scryfall or TCGPlayer for the latest. Given its niche combo role and limited competitive demand, it typically sits in bulk-rare territory — worth picking up a copy or two if you're building around it, since the ceiling on demand is low.
Explore
Sources
Updated . Data from Scryfall, EDHREC, and Commander Spellbook.