Tangle [Invasion] Judge Gift Cards 2004 and that player loses life

and that player loses life equal to the total mana value of those cards

you may put a creature card with mana value X or less from among those cards onto the battlefield

Set: Secret Lair Drop Series Type: Artifact Rarity: Mythic Cost: {3} As long as Trinisphere is untapped

If solving one case isn't enough for your players

Tangle [Invasion] Judge Gift Cards 2004 and that player loses lifeSet: Invasion Type: Instant Rarity: Uncommon Cost: {1}{G} Prevent all combat damage that would be dealt this turn. Each attacking creature doesn't untap during its controller's next untap step. Gaea battles rampant death with abundant life.