Terra, Magical Adept (Borderless)

When Terra enters, mill five cards. Put up to one enchantment card milled this way into your hand.
Trance — 4RG, T: Exile Terra, then return it to the battlefield transformed under its owner's control. Activate only as a sorcery.
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Esper Terra
[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 WW, UU, BB, RR, and GG. Exile Esper Terra, then return it to the battlefield (front face up).
Flying