You can banish this card and 1 face-up Machine monster you control, then target 1 DARK monster in your GY; Special Summon it. You can only use this effect of "Jack Wyvern" once per turn.
| Detail | Value |
|---|---|
| Card Type | Effect Monster |
| Attribute | DARK |
| Level | 4 |
| ATK | 1800 |
| DEF | 0 |
| Race | Machine |