Sample Decklist Astarion rewards you for gaining life and punishes your opponents for losing it, so the decklist leans heavily into life drain effects, allowing you to capitalize on both
The only cost is dropping Lightning Bolt for Abrade, which isn't a big deal, especially compared to the power that Chalice of the Void offers in some matchups
Mind Flayarrrs meanwhile, has heaps of horrors (including that Crab Ooze Horror which Gavin Verhey teased), and is centred on manipulating your opponents' graveyards, milling them and then stealing their creatures
For 5BR, players can sacrifice Mount Doom and a legendary artifact for a devastating board wipe, destroying all creatures apart from two
The clause allowing Ifrit as a red creature to deal damage to a creature with protection from red became a static ability that's always true, meaning he can deal damage in combat if they blocked him
They allow collectors to obtain rare and hard-to-find cards, which may appreciate in value over time