Heartstone vs Training Grounds — MTG Card Comparison
Heartstone
Activated abilities of creatures cost {1} less to activate. This effect can't reduce the mana in that cost to less than one mana.
Training Grounds
Activated abilities of creatures you control cost {2} less to activate. This effect can't reduce the mana in that cost to less than one mana.
| Stat | Heartstone | Training Grounds |
|---|---|---|
| Mana Cost | {3} | {U} |
| CMC | 3 | 1 |
| Type | Artifact | Enchantment |
| Rarity | Uncommon | Rare |
| Set | Stronghold | March of the Machine: The Aftermath |
| Price (USD) | — | — |
| Standard | ✗ | ✗ |
| Modern | ✗ | ✓ |
| Pioneer | ✗ | ✓ |
| Legacy | ✓ | ✓ |
| Vintage | ✓ | ✓ |
| Commander | ✓ | ✓ |
| Pauper | ✗ | ✗ |
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