Terra, Magical Adept // Esper Terra Commander deck

When Terra enters, mill five cards. Put up to one enchantment card milled this way into your hand. Trance — {4}{R}{G}, {T}: Exile Terra, then return it to the battlefield transformed under its owner's control. Activate only as a sorcery. // (As this Saga enters and after your draw step, add a lore counter.) I, II, III — Create a token that's a copy of target nonlegendary enchantment you control. It gains haste. If it's a Saga, put up to three lore counters on it. Sacrifice it at the beginning of your next end step. IV — Add {W}{W}, {U}{U}, {B}{B}, {R}{R}, and {G}{G}. Exile Esper Terra, then return it to the battlefield (front face up). Flying

Based on 7 real Terra decks and 12 similar commanders.