Your opponent will control your creature, but it's still a commander that you own, so your background still applies to that card, even on another side of the table
Tims Zuran Spellcaster (Ice Age/Alliances) , Suq'Ata Firewalker (Mirage/Visions/Weatherlight) , Rootwater Hunter (Tempest/Stronghold/Exodus) , Thornwind Faeries (Saga/Legacy/Destiny) , Stinging Barrier (Masques/Nemesis/Prophecy) Psionic Gift and Hermetic Study are fine, but they require a two card investment: the creature you are enchanting, and the enchantment itself
Sire of Seven Deaths has a seven-theme going: 7 mana, 7/7 stats, and seven abilities
The Mending of Dominaria The Mending of Dominaria is a self-mill enchantment that aims to get the creatures and lands you need from your graveyard
That's a deck about getting just a bunch of characters out and just Questing [gaining points] really fast Emerald & Ruby is really, I think, the most strategically complex of the three
Heavy Helmet ( Mega Rising ) reduces all attack damage taken by the holder by 20 if its Retreat Cost is 3 or more