Siebold (198/198) [Sword & Shield: Chilling Reign] Fossil Unlimited or all monsters you control

or all monsters you control are "Trickstar" monsters: You can Special Summon this card from your hand

Set: Sun & Moon: Unbroken Bonds Type: Fighting Rarity: Secret Rare Retreat cost: Colorless

you can send any number of "Morphtronic" monsters from your hand to the Graveyard to have this card gain 800 ATK for each

This Deck employs the classic "Synchro Climb" strategy with a twist: once you've finished climbing to the highest Level Synchro Monster

1 Level 5 or higher Fiend-Type monster you Normal Summon can be Summoned without Tributing

Siebold (198/198) [Sword & Shield: Chilling Reign] Fossil Unlimited or all monsters you controlSet: Sword & Shield: Chilling Reign Type: Supporter Rarity: Ultra Rare