might be wrong, but i think the winner announced this year will be for the 2021 contest
This in combination with any infinite Landfall combo, such as Llanowar Scout, Simic Growth Chamber, and Retreat to Coralhelm, you can exile each opponents library

Aberrant Aether Channeler Agent of Treachery Alquist Proft, Master Sleuth Architects of Will Armorcraft Judge Azor, the Lawbringer Baleful Strix Barbed Servitor Barrin, Tolarian Archmage Battlewing Mystic Bazaar Trademage Be'lakor, the Dark Master Beastbond Outcaster Bedlam Reveler Biomechan Engineer Blade Juggler Bladecoil Serpent Blood Servitor Bloodcrazed Socialite Bloodtithe Harvester Bonny Pall, Clearcutter Bookwurm Borborygmos and Fblthp Briarbridge Tracker Broodlord Caldaia Strongarm Callous Bloodmage Carnage Interpreter Carven Caryatid Cavalier of Flame Cavalier of Gales Cephalid Sage Champion of Dusk Champion of Wits Charming Scoundrel Chronicler of Heroes Circuit Mender Citanul Woodreaders Clackbridge Troll Clattering Augur Clive, Ifrit's Dominant Clockwork Servant Cloud of Faeries Cloudblazer Cloudkin Seer Combat Thresher Combustible Gearhulk Common Iguana Conciliator's Duelist Coralhelm Chronicler Crackling Drake Crypt Lurker Cultivator Colossus Didact Echo Discerning Peddler Disciple of Bolas Disciple of Freyalise Discourtesy Clerk Doom Weaver Dormant Sliver Drownyard Explorers Dusk Legion Zealot Duskana, the Rage Mother Eagle of Deliverance Earthshaker Dreadmaw Echo Inspector Echo of Death's Wail Elite Guardmage Elite Instructor Elvish Visionary Errand-Rider of Gondor

Prizefighter Construct: Limited
.that is, unless the opponent uses Sky Uppercut
Similarly, in Commander, this card can offer amazing fixing or steady ramp if it can attack safely