To determine the amount of life the target opponent loses from Rapacious Guest's last ability, use Rapacious Guest's power as it last existed on the battlefield, not its power in the graveyard
Of course, until this MTG set is actually live and being drafted, the data won't be a perfect guide
Two Heads Cuter Than One If a single anthropomorphized critter depicted on a Bloomburrow card is cute, then combining multiple species on the same card, shown working together, is downright delightful
Karns Bastion is a little costly to do the job, but the fact its a land that can produce mana in the early game helps make up for that, especially because it can become a real engine late
There aren't many ways to bring permanents back from the graveyard once they're removed, so once something is gone, it's likely gone for good
If an attacking creature loses haste, perhaps because Fervor leaves the battlefield after attackers have been declared, it won't be removed from combat