Forcefield [30th Anniversary Edition] Dinosaur Hippo Xantcha attacks each combat if

Xantcha attacks each combat if able and can't attack its owner or planeswalkers its owner controls

Grandfather of Eternity Essence of Earth and Ice (You may have Earth and Ice cards in your deck

then put any number of creature cards from your hand onto the battlefield

you draw three cards

"If powerstones are energy stored in material form

Forcefield [30th Anniversary Edition] Dinosaur Hippo Xantcha attacks each combat ifSet: 30th Anniversary Edition Type: Artifact Rarity: Rare Cost: {3} {1}: The next time an unblocked creature of your choice would deal combat damage to you this turn, prevent all but 1 of that damage.