Emrakul is a real problem once someone has enough mana to cast it, as it can't be countered by instants
It is likely that cards from those two blocks will be included in the cards that are added to MTG Arena for Historic play
Theres also something to be said about the impact of the 30-year nostalgia cycle
Card Set(s) -THE TIME OF BATTLE- [OP-16] CARD VIEW OP16-042 | TR | CHARACTER Prisoner of Impel Down Attribute Strike Block Icon 5 Effect Under the rules of this game, you may have any number of this card in your deck
If you control ten or more treasures at the beginning of your upkeep while you have Revel in Riches out, you win the game

Hans, Run!" Agency Outfitter Ajani's Aid Alpine Houndmaster Angel's Herald Angrath's Fury Arachnus Spinner Ashiok's Forerunner Asmoranomardicadaistinaculdacar Avarax Basri's Aegis Behemoth's Herald Bogbrew Witch Chandra's Firemaw Chandra's Flame Wave Chandra's Outburst Dark Supplicant Daru Cavalier Demon's Herald Diligent Farmhand Domri's Nodorog Dovin's Dismissal Dragon's Approach Dragon's Herald Dragonstorm Forecaster Elspeth's Devotee Elspeth, Undaunted Hero Elvish Clancaller Embermage Goblin Ethereal Elk Forging the Tyrite Sword Garruk's Warsteed Gate to the Afterlife Gideon's Battle Cry Gideon's Resolve Gigantiform Goblin Tutor Goldmane Griffin Grand Master of Flowers Grasping Current Growth-Chamber Guardian Infectious Bloodlust Isperia the Inscrutable Jace's Ruse Journey for the Elixir Kassandra, Eagle Bearer Kyscu Drake Liberating Combustion Liliana's Influence Liliana's Scorn Llanowar Sentinel Magitek Infantry Nazahn, Revered Bladesmith Niambi, Faithful Healer Nissa Revane Nissa's Encouragement Oko's Hospitality Ral's Dispersal Raven Clan War-Axe Renowned Weaponsmith Rhythmic Water Vortex Rowan's Stalwarts Ruin in Their Wake Say Its Name Screaming Seahawk Shadowborn Apostle Shaun & Rebecca, Agents Sift Through Sands Silver Surfer, Galactus's Herald Smuggler Captain Sorin's Guide Sphinx Ambassador
