Tuvasa's Enchanted Pillow Fort (EDH / Commander)

So the general idea is:

1. Get some ramp going to accelerate all your plans
2. Play an extra enchantress or two to generate even more card draw
3. Start spamming enchantments to gain board presence, build the pillow fort, and exile your opponents' threats as needed
4. Make Tuvasa the Sunlit extremely difficult to stop with evasion and buff enchantments
5. Smack face with your commander or a token army

Some possible kill/win combos:

• Tuvasa the Sunlit + (Steel of the Godhead/Thassa, God of the Sea/Rogue's Passage) + Enchanted Evening/Ancestral Mask/Ethereal Armor = big unblockable hits
  • Setessan Champion can make a great backup here if played early enough, but any creature with a big enough Ancestral Mask on it will hurt
• Sigil of the Empty Throne/Hallowed Haunting chained into some low mana enchantments = small army of scary fliers
• Enchanted Evening + Austere Command + Heroic Intervention = Full wipe everyone but yourself, lands included. If somebody counters your Heroic Intervention, hopefully you have another out.
• Enchanted Evening + (Ajani's Chosen/Archon of Sun's Grace) + (Aura of Silence/Swords to Plowshares/Teferi's Protection) = 10 million strong cat army
• You can also try force the game into a draw with just Enchanted Evening & Ajani's Chosen/Archon of Sun's Grace if things aren't going your way. It will combo off itself infinitely unless someone has instant speed creature or enchantment removal.
  • Note: Make sure you don't have Eidolon of Blossoms or Setessan Champion on the field when you start this combo! You'll deck yourself and lose instead of ending the game. You'll also need to make sure Sterling Grove won't lock you out, you can't end the combo via removal if your stuff has shroud.

I stayed away from the Solemnity suite of lockdowns because they all rely entirely on Solemnity resolving & surviving long enough for the combo to work, and if it does, that's a good way to make a more casual playgroup mad at you.
This used to be medium budget but magic got expensive over the past couple years. The mana base has also had numerous upgrades that aren't very cheap, the objective is a high chance of having a forest for Utopia Sprawl to enchant on turn 1 or 2 and a pretty high chance for Collective Restraint to have 3 basic land types.

TL;DR: Protect yourself with pillow enchantments and miscellaneous token creatures, then swing with an army or one massive guy. Maybe board wipe combo if you're lucky.