Caustic Crawler
Creature — Insect
Landfall — Whenever a land you control enters, you may have target creature get -1/-1 until end of turn.
- CMC
- 5
- Mana cost
- Color identity
- B
- Rarity
- uncommon
- Set
- Worldwake
- Price
- $0.17
- EDHREC rank
- #17188
Caustic Crawler turns every nonland permanent entering the battlefield into a targeted ping — and under Horobi, Death's Wail, a ping means destruction. The cost is a four-mana 2/4 body that does nothing on its own, so it's a build-around, not a standalone threat.
Best Commanders
Commanders with the highest synergy
Horobi, Death's Wail
Horobi, Death's Wail makes Caustic Crawler into a mass-removal engine: every permanent entering the battlefield targets something, and Horobi converts every target into a death sentence, letting you wipe the board through normal gameplay without spending a single removal spell.
Format Analysis
Where it lives, where it can’t
| Format | Verdict |
|---|---|
| commander | legal |
| legacy | legal |
| modern | legal |
| pioneer | not legal |
| standard | not legal |
| vintage | legal |
| pauper | not legal |
| oathbreaker | legal |
Caustic Crawler is legal in Commander, Legacy, Modern, Vintage, and Oathbreaker, but it sees virtually no play outside Commander — the effect is too slow and conditional for formats where games end before a four-mana 2/4 generates value. In Commander, it's a niche piece in decks that can weaponize targeting, with Horobi, Death's Wail being its only real home at meaningful inclusion rates. Outside that specific shell, the card is too passive to justify a slot in any 99.
Key Combos
Combo lines featuring this card
Price Context
Current price
$0.17 bulk tier
At $0.17, Caustic Crawler is deep bulk — the price reflects its narrow playability rather than any scarcity concern. It won't appreciate; pick up copies only if you're building the specific Commander deck that needs it.
Explore
Sources
Mentioned
Updated . Data from Scryfall, EDHREC, and Commander Spellbook.