[Loki] - 'Tis the season to be a fossil

[Thar]

[size=5]Amber Fir[/size]
[i]Spell Card - Continuous[/i]
Once per turn, during your Standby Phase: Put a Sap counter on target creature; Monster cards with Sap counters gain 200 ATK and DEF for each Sap counter on them. When this card is destroyed: Destroy all Monster cards whose level stars are equal to or less than the amount of Sap counters on them.