How do I counter super heavies

Witchcrafter maddame verre or any effect negations like chalice (if you negate the synchros, they can't attack in def mode

Stop Defense

Skill issue

https://duellinks.konami.net/att/0641493c05df0212f8a71b8c35fd6decd3e00d7575

watch and learn

You need some way to deal with the grave effect of gigagloves.

You could banish it from the grave with something like a DD crow, or throw down a Necrovalley.

Gaia and Blue Eyes have good matchups against Superheavy samurai because the gaia field spell locks out battle phase effects and blue eyes spirit dragon negates graveyard effects.

Abyss dweller is a generic rank 4 that does a good job of shutting down their plays as well