Gemstone Caverns [Time Spiral] SM155 Jace surmised that they were

Jace surmised that they were walking into Bolas's trap

that creature attacks each combat if able and attacks a player other than you if able

Set: Strixhaven: Mystical Archive Type: Sorcery Rarity: Mythic Cost: {6}{W} If this spell was cast from your hand and you've cast another spell named Approach of the Second Sun this game

/ darting in to strike

"My grandfather knew enough spells to fill a hundred scrolls

Gemstone Caverns [Time Spiral] SM155 Jace surmised that they wereSet: Time Spiral Type: Legendary Land Rarity: Rare If Gemstone Caverns is in your opening hand and you're not the starting player, you may begin the game with Gemstone Caverns on the battlefield with a luck counter on it. If you do, exile a card from your hand. {T}: Add {C}. If Gemstone Caverns has a luck counter on it, instead add one mana of any color.