Ecologist's Terrarium
Artifact
When this artifact enters, you may search your library for a basic land card, reveal it, put it into your hand, then shuffle.
, 
, Sacrifice this artifact: Put a +1/+1 counter on target creature. Activate only as a sorcery.
- CMC
- 2
- Mana cost
- Color identity
- C
- Rarity
- common
- Set
- Kamigawa: Neon Dynasty
- Price
- $0.17
- EDHREC rank
- #12824
Ecologist's Terrarium enters the battlefield, draws you a card, and puts a land from your hand onto the battlefield tapped — all for two mana, with a colorless artifact body that accumulates counters. The catch is that the land enters tapped, which slows your tempo, but in any deck that cares about artifacts entering or counters accruing — especially Omarthis, Ghostfire Initiate — the card-draw alone justifies the slot.
Best Commanders
Commanders with the highest synergy
Omarthis, Ghostfire Initiate
Omarthis, Ghostfire Initiate grows from counters placed on colorless permanents, and Ecologist's Terrarium enters with a counter while replacing itself with a card draw — two triggers' worth of value stapled to a single artifact that sits on the board and keeps fueling Omarthis's size.
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 |
In Commander, Ecologist's Terrarium occupies the budget end of the cantripping artifact spectrum — it replaces itself, accelerates your land count, and leaves a permanent behind, which is a reasonable rate for singleton decks that need both card flow and board presence. Outside Commander, it rarely sees play: Pauper, Modern, Pioneer, and Legacy all have access to more efficient land-fetch or draw options at the same mana cost, and the tapped-land penalty is more punishing in faster formats where tempo is everything. It's a Commander card through and through, and a niche one at that — most relevant in artifact-synergy or counters-matter builds where the body itself does work after the enters-the-battlefield trigger resolves.
Key Combos
Combo lines featuring this card
Price Context
Current price
$0.17 bulk tier
At $0.17, Ecologist's Terrarium is deep bulk — the kind of card you pick up as an afterthought or pull from a common box. Bulk artifact staples with narrow homes rarely spike, so don't expect the price to move meaningfully unless a future commander pushes artifact-enters or counter synergies into the mainstream.
Explore
Sources
Mentioned
Updated . Data from Scryfall, EDHREC, and Commander Spellbook.