For years scholars debated whether these were Urza's or Mishra's creations. Recent research suggests they were invented by the brothers' original master, Tocasia, and that both used these devices.
| Printings (9) | Price |
|---|---|
Masters Edition IV | — |
Seventh Edition | $0.21 |
Seventh Edition | $5.41 |
Fifth Edition | $0.12 |
Renaissance | $1.49 |
| Latest | Nonfoil | |
|---|---|---|
| TIX | 0.05 | |