Release year for Ultra Prism is 2018. Ultra Prism is grouped under the Sun & Moon era.
The checklist contains 178 cards, placing it in a large expansion range. As of 2026, the set is 8 years old and now falls into an established back-catalog period.
Unit Energy GrassFireWater (#137) is one of the Uncommon prints in this expansion.
Unit Energy GrassFireWater appears in Ultra Prism, released in 2018. Its card type is Energy.
The rarity label is Uncommon. It carries a Special subtype designation.
The card text reads: This card provides Colorless Energy. While this card is attached to a Pokémon, it provides Grass, Fire, and Water Energy but provides only 1 Energy at a time.
No explicit attack names are available in the loaded card metadata. Uncommon-tier prints usually balance accessibility with moderate collector demand.
Current market pricing for Unit Energy GrassFireWater (Ultra Prism) sits near $0.42. Its 7-day movement is largely flat at 0.0%.
Relative to the last 30 days, value is near baseline at $0.42. In the past 90 days, observed prices ranged from $0.40 to $0.54 (33% spread), a moderate-volatility profile.
The listed rarity for this print is Uncommon.
Other Unit printings create a useful comparison set for Unit Energy GrassFireWater. This comparison sample includes 1 alternatives across 1 set.
Only one priced comparison is available in this sample ($18.75). Notable alternatives include Unit Energy GrassFireWater #170 (Ultra Prism) at $18.75.
Market structure summary: Weekly drift is minimal (0.0%), indicating a relatively balanced short-term market. Observed 90-day bounds of $0.40 and $0.54 create a 33% band, matching a moderate-volatility profile.
Relative to the 30-day baseline ($0.42), pricing is near equilibrium. This sample does not include a stable graded benchmark, which means active listings remain the best condition-adjusted reference.
