It can be used to put powerful cards into your graveyard for a graveyard-focused deck, or it can be used to fill your hand up with the control pieces you need to keep your opponents at bay
Now every Trainer is fully focused on improving their digital decks with only one goal in mind to be the very best like no one ever was
Do you remember what it is

Other printings of Diabolic Tutor $51.82 Diabolic Tutor Odyssey $29.96 Diabolic Tutor Secret Lair Drop $3.33 Diabolic Tutor Wizards Play Network 2024 $8.80 Diabolic Tutor Secret Lair Drop $10.00 Diabolic Tutor Eighth Edition $6.96 Diabolic Tutor Magic 2012 $6.09 Diabolic Tutor Kaladesh $5.25 Diabolic Tutor Magic 2014 Most valuable cards in The List View the full price guide $109.34 Ancient Tomb The List $67.21 Vampiric Tutor The List $65.47 Shadowspear The List $63.32 Anointed Procession The List $59.31 Rhystic Study The List $58.11 Minamo, School at Water's Edge The List $57.28 Nykthos, Shrine to Nyx The List $55.15 Demonic Tutor The List More cards by Rick Farrell $81.32 Shadowmage Infiltrator Odyssey $15.32 Shadowmage Infiltrator Time Spiral Timeshifted $6.27 Spellbane Centaur Odyssey $5.29 Diabolic Tutor Ninth Edition $3.37 Woodland Druid Odyssey $1.32 Diabolic Tutor Eighth Edition $1.26 Diabolic Tutor Ninth Edition $0.27 Shadowmage Infiltrator Outlaws of Thunder Junction Commander Discover Keep browsing SetThe List Most valuableTop 100 Magic: The Gathering cards You might also like...

For example, Tamiyo, Field Researcher lets you cast spells for free for the rest of the game, and Nicol Bolas, Dragon-God can kill each of your opponents as long as they dont control a legendary Creature or Planeswalker
Probably worth noting that Mike Long is notorious for a history of cheating in high-stakes MTG events, so maybe Rootwater Thief was his comeuppance