I played an Esper control deck last year when core 2020 was rotated in and set a goal to hit mythic rank with it. I did it after a few months and decided to move onto something else.
One year later, I reinstalled MTGA and wondered if my old Esper control deck was still viable. Well, it turns out that with a few tweaks, I end up hitting Mythic again after a month. This deck is capable of beating any archtype with the right draws.
Single removal - Heartless Act, Tyrant's Scorn, Oath of Kaya, Murderous Rider, Elderspell
Draw - Omen of the Sea, Teferi, Time Raveler, Drawn from Dreams Narset, Parter of Veils, Elite Guardmage, Cavalier of Gales
Boardwipe - Ritual of Soot, Kaya's Wrath, Time Wipe
Heal - Omen of the Sun, Oath of Kaya, Sorin, Vengeful Bloodlord, Heliod's Intervention
Graveyard hate - Grafdigger's Cage, Ashiok, Dream Render
Planeswalker hate - Sorcerous Spyglass, Murderous Rider, Elderspell, Elspeth Conquers Death
Enchantment & Artifact removal - Heliod's Intervention, Elspeth Conquers Death
Use Yorion, Sky Nomad to exile Omen of the Sea, Omen of the Sun, your creatures and planeswalkers for value. You will heal up, draw more cards and create more soldier tokens. Find your answers from your sideboard using Fae of Wishes, then cast Fae as a creature. If necessary, unsummon Fae using Teferi or Tyrant's Scorn to find more answers.
The combo piece of using Elderspell to kill two planeswalkers (you can kill your own planeswalkers) and give Liliana + 4 counters to allow her to ultimate is game winning, but not necessary to win as you can often outlast your opponent.
