Summer Bloom [Starter 1999] Thopter change Halfdane's base power and

change Halfdane's base power and toughness to the power and toughness of target creature other than Halfdane until the end of your next upkeep

At end of combat

destroy all non-Dinosaur creatures

Set: Commander 2013 Type: Artifact Rarity: Rare Cost: {3} You may activate abilities of creatures you control as though those creatures had haste

Set: Fourth Edition Type: Sorcery Rarity: Rare Cost: {3}{W} Destroy all lands

Summer Bloom [Starter 1999] Thopter change Halfdane's base power andSet: Starter 1999 Type: Sorcery Rarity: Rare Cost: {1}{G} You may play up to three additional lands this turn. Summer sends its kiss with warmth and blooming life.