Yeah it's easy to counter with many cards. You just have to think outside of the box, there are many techs, spells and monster effects, monsters like EB immortal that can ignore it and attack past it
Yeah, a monster that's ridiculously hard to search and take more effort to summon like EB is totally a good counter for a fusion that can be summoned turn 1.
There's many other counters, you just gotta get creative. Millenium Eyes Restrict is a good disrupter against Invoked decks. There's counter fairies, anti-fusion device and non-fusion area. Cards that return to the hand but dont target. Lava golem, share the pain, mask of restrict
"what is even the point of that lol" i love how biased fanboys of broken cards try their best to defend a broken card with by giving you shi t sol
they just try to make excuses by giving you "solutions" (nobody is going to run those cards cos its not worth it total
)so they can say the card is not broken.while its broken asf.at least take away on of the skill either the destroyable or targetable.