| Type: | Synchro/Effect Monster |
| Sub-Type: | Fiend |
| Attribute: | DARK |
| Level: | 8 |
| ATK: | 2800 |
| DEF: | 2800 |
| Text: | 1 Tuner + 1+ non-Tuner Fiend monsters During your opponent's Main Phase (Quick Effect): You can target 1 Effect Monster on the field; discard 1 monster, and if you do, negate that monster's effect until the end of this turn. You can only use this effect of "Groza, Tyrant of Thunder" once per turn. If a Fiend monster(s) is sent from the hand to your GY (except during the Damage Step): You can apply 1 of the following effects to this card, until the end of this turn. |
| Password: | 45420955 |
| Printings |
2023 25th Anniversary Tin: Dueling Heroes Mega Pack (MP23-EN055) -
2023-09-07 Battle of Chaos (BACH-EN097) - 2022-02-11 |