(Faithless Looting is just a good card.) My personal favorites in this category: Baral and Kari Zev Gale, Waterdeep Prodigy Wild-Magic Sorcerer Mizzixs Mastery Creative Technique Throes of Chaos Spelltwine Mnemonic Deluge No Kill Like Overkill Sometimes things go wrong
By all measures, it's the Hearthstone version of Lorcana - the app installed on my PC provides access to a digital collection, cardback and deck customisation, both ranked and direct PvP matches and detailed statistics (if you subscribe to the projects Patreon)
Honorable Mention #1 - (#13 Overall) - Zask, Skittering Swarmlord This five-drop legendary dork has a nice 5/5 body with a few abilities
2 Junji, The Midnight Sky Can Hit An Opponent's Hand Or Resurrect A Creature Junji, The Midnight Sky is part of the legendary enchantment dragon cycle of this set which mirrors a similar cycle of dragons from Champions of Kamigawa
I'm NOT providing card-for-card swaps for these, but the general rule of thumb is take out cards that fulfill the same role but worse: take out a land for a land, removal for removal, card draw for card draw, etc