Mercurial Skies
Lightning Runeblade Action
Mercurial Skies has 3 versions — pitch 1, 2, 3. Each one's card text, stats and printings are below.

Pitch 1 · cost 0
- Pitch 1
- Cost 0
- Defense 2
- Arcane 3
The next Runeblade or Lightning attack action card you play this turn gets go again and "The first time this deals damage to a hero, you may destroy a Lightning Flow you control. If you do, deal 3 arcane damage to them."
Go again
Keywords
- Go again
Printed in: OMN

Pitch 2 · cost 0
- Pitch 2
- Cost 0
- Defense 2
- Arcane 2
The next Runeblade or Lightning attack action card you play this turn gets go again and "The first time this deals damage to a hero, you may destroy a Lightning Flow you control. If you do, deal 2 arcane damage to them."
Go again
Keywords
- Go again
Printed in: OMN

Pitch 3 · cost 0
- Pitch 3
- Cost 0
- Defense 2
- Arcane 1
The next Runeblade or Lightning attack action card you play this turn gets go again and "The first time this deals damage to a hero, you may destroy a Lightning Flow you control. If you do, deal 1 arcane damage to them."
Go again
Keywords
- Go again
Printed in: OMN
Format legality
| Classic Constructed | Legal — up to 3 |
|---|---|
| Living Legend | Legal — up to 3 |
| Blitz | Legal — up to 1 |
| Silver Age | Legal — up to 2 |
| Commoner | Not in pool |
| Ultimate Pit Fight | Legal — up to 1 |
Heroes that can play Mercurial Skies
6 of the 154 heroes Fabdex tracks can legally include Mercurial Skies in a deck. A percentage is how often the card actually turns up in that hero's tracked Classic Constructed decks — the heroes with one are listed first.
- Briar, Warden of Thorns
- Aurora, Legacy of Tempest
- Aurora
- Aurora, Emissary of Lightning
- Aurora, Shooting Star
- Briar
Synergises with Mercurial Skies
Fabdex's synergy engine ranks these as the strongest partners for Mercurial Skies, combining card text, shared mechanics and how the pair performs in tracked decks. This is the engine's reading of the card pool rather than a count of tournament decks.