Cyber Harpie Lady was played in many decks for this exact reason: it was a level 4 monster with 1800 attack, which is pretty decent for putting the pressure on your opponent
Special Summon 2 "Gladiator Beast" monsters from your Deck
Also, if you play Commander, you already know the funniest comparison: you can spend a painful amount on one staple, or you can get an entire deck experience
NM-LP 1 In Stock Yell Horn - 173/189 - Uncommon Darkness Ablaze Varied Condition
When faced with the Nordic Gods, Yusei initially evolved "Stardust" into "Majestic Star Dragon", and while he was able to use its destruction effect to wipe out the Nordic Gods, Halldor prevented his loss and brought the Gods back
Because Bruvac specifically doubles the number of cards that would normally be milled by an opponent, cards like Maddening Cacophony that mill half of each opponents library will end up being strong win conditions, forcing your opponents to lose via decking