Tantrum Toddler

2 Level 1 monsters
Once per Chain, if a card or effect activation is negated (except during the Damage Step): You can attach up to 1 card each from your GY and your opponent's GY to this card as material. This card gains effects based on the number of materials attached to it.
● 1+: Gains 700 ATK/DEF for each material attached to it.
● 4+: Cannot be destroyed by battle or card effects.
● 8+: (Quick Effect): You can detach 4 materials from this card; destroy all cards on the field.