Try to keep control of the board when you can make favorable trades against weaker characters, and use tools like Hercules, True Hero

Age-Graced Chapel Arcane Sanctum Ballroom Bleachbone Verge Caves of Koilos Concealed Courtyard Contaminated Landscape Crystal Quarry Deceptive Landscape Desolate Mire Dromar's Cavern Eclipsed Steppe Fetid Heath Fisk Tower Foot Headquarters Forlorn Flats Forsaken Sanctuary Forum of Amity Godless Shrine Goldmire Bridge Great Hall of Starnheim Indatha Triome Insomnia, Crown City Isolated Chapel Misty Palms Oasis Murmuring Bosk Neglected Manor Nomad Outpost Orzhov Basilica Orzhov Guildgate Raffine's Tower Restless Fortress Salt Flats Sandsteppe Citadel Savai Triome Scoured Barrens Scrubland Shadowy Backstreet Shambling Vent Shattered Landscape Shattered Sanctum Shineshadow Snarl Silent Clearing Silverquill Campus Snowfield Sinkhole Starlit Sanctum Sunlit Marsh Tainted Field Temple of Silence The World Tree Tomb of the Dusk Rose Tournament Grounds Turbulent Moor Umbral Expanse Vault of Champions Vault of the Archangel Wizards' School

There were only two differences: one, our base stats were less aggressive, and two, the landfall bonus was only +1/+1
The conjure mechanic also gives us access to a lot of cards that would otherwise never be put into Arena
If you need multiple cards, consider focusing on the cards you already own
I didn't even get to infinite combos, but they often start with a free sacrifice outlet and work with many angles