No one attacks into you with a x/3 or less creature, because they dont want to take the chance of you winning the coin flip and killing their creature by blocking, so it plays a lot better than a simple 3/6 for that cant block
Ledger Shredder (SPG) $26.99 Ledger Shredder was underestimated when it was first printed in Streets of New Capenna , but since then it has been called the blue Tarmogoyf
Ordinarily you'll need to pay ink to Boost, but there are other ways to trigger it
Its worth noting that both Quicksilver Amulet does this without the Creature type restriction, and Dragon Arch does it for cheaper, but only for multicolored Creatures
it doesnt take long before Temur Battle Rage and similar spells enable a swift Voltron win, though thats rarely the main game plan
The best way to phrase it overall is that you want as many enablers as you can play that will work with 3-6 threats