![Mercurial Heart (12) [Mercurial Heart Alter Edition]](http://hideoutcg.com/cdn/shop/files/634552_800x.jpg?v=1749068855)
![Mercurial Heart (12) [Mercurial Heart Alter Edition]](http://hideoutcg.com/cdn/shop/files/634552_1024x.jpg?v=1749068855)
Description
| Set Name: | Mercurial Heart Alter Edition |
| Release Date: | 2025-05-30 |
| Rarity: | Ultra Rare |
| Card Name: | Mercurial Heart |
| Card Number: | 12 |
| Flavor Text: | Who truly knows what it means to have a heart? |
| Card Type: | Regalia;Item |
| Card Subtype: | Guardian;Artifact;Powercell |
| Element: | Norm |
| Class: | Guardian |
| Memory Cost: | 0 |
Divine Relic (You can only have one card with this keyword in your material deck.)
On Enter: Put a buff counter on target Automaton ally you control.
On Enter: Put a buff counter on target Automaton ally you control.
