There are quite a few decks, like Tron, Living End, Amulet Titan, and more that give Ragavan a disturbing amount of time to accumulate advantage
Thanks to Shift, you can play her for two less, which is always a royal bonus
A very nice design
So if you like content like this, let us know on our Discord, and maybe we'll do a sequel
Bouncing back to your hand isn't as bad as sacrificing a creature, but the effect still sets you back in a big way and can be followed up with a nasty counterspell
The first to enter this list is Glarb, Calamity's Augur, a three-mana potential commander who can trade favorable in combat and also Surveil two cards deep to play either lands or spells that cost four or greater from the top of your library