Spiteful Sliver (Extended Art) [Secret Lair Drop Promos] Judge Gift Cards 2015 Thunderbreak Regent deals 3 damage

Thunderbreak Regent deals 3 damage to that player

Apex of Forever from your graveyard using its mutate ability

Set: International Collectors' Edition Type: Artifact Rarity: Rare Cost: {2} {1}

Tasha’s Cauldron of Everything

so the synergy not only works with the original Gizmeks

Spiteful Sliver (Extended Art) [Secret Lair Drop Promos] Judge Gift Cards 2015 Thunderbreak Regent deals 3 damageSet: Secret Lair Drop Promos Type: Creature Sliver Rarity: Rare Cost: {2}{R} Sliver creatures you control have Whenever this creature is dealt damage, it deals that much damage to target player or planeswalker. Victories against the hive are tragedies.