According to the comprehensive rules, "The phasing event doesn't actually cause a permanent to change zones or control, even though it's treated as though it's not on the battlefield and not under its controller's control while it's phased out." For this reason, all triggers affiliated with leaving or entering a zone won't happen due to phasing
Then we have more aggressive songs like Be Prepared that banish every character on the table or Grab Your Sword that deals damage to every opposing character
Quantum Riddler draws you a card or two, while Starfield Shepherd is a tutor for lands or small creatures
(When you cast that spell, exile cards from the top of your library until you exile a nonland card that costs less
Roll a d20 and add the toughness of the creature you sacrificed this way
4 Ursula - Sea Witch Queen 208/204, Amethyst It's a bit of a shame that Ursula doesn't manage to top her own themed Ursula's Return expansion in value, but she comes close enough to it