Mammoth Growth
Instant
Target creature gets +4/+4 until end of turn.
Foretell 
(During your turn, you may pay 
and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)
- CMC
- 3
- Mana cost
- Color identity
- G
- Rarity
- common
- Set
- Kaldheim
- Price
- $0.15
- EDHREC rank
- #19227
Mammoth Growth puts +4/+4 and trample on a creature at instant speed — that's a meaningful pump that can win a combat or push through lethal damage. Four mana is real cost for a one-shot effect, and in a format full of two-for-ones, you're trading a card for a single combat trick.
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, Mammoth Growth is too slow and too narrow — you need your cards to do work across the whole table, and a single combat trick doesn't clear that bar. Pauper is the format where Mammoth Growth has the most plausible home, since the +4/+4 trample clause can close games that other common pumps can't, and the card pool keeps competition modest. In Modern and Legacy, faster interaction and better pump spells make Mammoth Growth uncompetitive. Pioneer sits in the same boat — the effect isn't good enough relative to what those formats demand.
Key Combos
Combo lines featuring this card
Price Context
Current price
$0.15 bulk tier
At $0.15, Mammoth Growth is pure bulk — you're buying it for the effect, not the card. Bulk commons like this hold stable at floor pricing and won't appreciate, so there's no reason to stock up beyond what you actually need.
Explore
Sources
Mentioned
Updated . Data from Scryfall, EDHREC, and Commander Spellbook.