Demonic Tutor [The List] Commander's Arsenal you can pay 1500 Life

you can pay 1500 Life Points to look at your opponent's hand

Set: Duel Terminal 3 Card type: Spell Card Rarity: Super Rare Select up to 3 removed from play monsters and return them to their owner's Graveyards

Then here's the guy for you

Encounter mythic monsters

Set: Betrayers of Kamigawa Type: Legendary Creature — Spirit Rare Cost: {6}{G}{G} Snake offering (You may cast this card any time you could cast an instant by sacrificing a Snake and paying the difference in mana costs between this and the sacrificed Snake

Demonic Tutor [The List] Commander's Arsenal you can pay 1500 LifeSet: The List Type: Sorcery Rarity: Rare Cost: {1}{B} Search your library for a card, put that card into your hand, then shuffle. Beware the generosity of demons.