Particularly in Mono-Red, card advantage is still shallow relative to other available card pools, but this is where Red can really shine
Oh also, Kiki-Jiki, Mirror Breaker + Restoration Angel obviously can attack and win, but sometimes, Post-Combat Main Phase, I just tutor Goblin Bombardment and sacrifice all the angels to win (instead of from attacking damage)
And, furthermore, it could deter Wizards from trying to print playable modal land cards or they would just stop using this kind of design altogether
Without Embereth's courage, the realm would falter and fall
Unlike Sephiroth, some EDH decks might want this card outside of Universes Beyond character decks. Sephiroth seems far too weak to see much play, but there is a niche that might want to try Artemis out
Each card with partner suggests a particular style of Commander deck for you to build