An effect specifying "monsters" cannot interact with Monster Cards treated as Spell/Trap Cards, while an effect specifying "Monster Cards" can interact with all Monster Cards, even if they are currently treated as Spell/Trap Cards
Of course, if you can transform Eddie Brock, you can immediately attack with the menacing, trampling, haste creature and immediate generate card advantage by attacking and sacrificing another creature
For Investors: The Base Set Thesis Romance Dawn is the strongest investment case in all of OPTCG
Essentially, if you can find a way to summon Cyber End Dragon using Power Bond, creating a monster with 8,000 ATK, and can find a way to attack directly that same turn, then the game is in your hands
Summon Limit is another Floodgate that affects both players, but because you can at most only Tribute Summon 2 Monsters in a turn