How many opponents do you face? If your edh group is just 1v1 then a deck full if counterspell will get you the long game state you're describing.
The problem with stax style cards is that if you yourself are not actively trying to win by some sort of combo or quick interaction, then yes you may slow one quick combo player down but you've also slowed everyone down. They will eventually start working against you.
Another very common possibility is that one of your opponents may not be affected by the stax effects and take an easy win, since everyone else won't be able to interact as they normally would.
The problem with stax style cards is that if you yourself are not actively trying to win by some sort of combo or quick interaction, then yes you may slow one quick combo player down but you've also slowed everyone down. They will eventually start working against you.
Another very common possibility is that one of your opponents may not be affected by the stax effects and take an easy win, since everyone else won't be able to interact as they normally would.
Links to my most current deck lists;
Primary EDH; Rakka Mar Token Perfection, Crosis Mnemonic Betrayal, Cromat Villainous, Judith Gravestorm, Rakdos Empty Storm, Exava Artifacts, Bant Trash, & Fumiko Voltron!
EDH kept at home; Ruzzian Isset & Rakdos LoR!
EDH (nostalgic/pimp/retired) in storage;
Latulla Burns, Akroma Smash, Jeska Voltron, Rakdos Storm, Bladewing Darghans, Lyzolda Worldgorger, Xantcha Steals your Heart, Jori Storm, Wydwen Permission, Gwendlyn Paradox, Jeleva Warps, & Sigarda Brick!
Legacy Showanimator and High Tide!