Totemic Ward's cc immunity prevents heavy blade's slow, and he can ghost walk to avoid heavy combat's burst. His ult slows the enemy, therefore his ult counters your ult.
Overall, Skye counters Io. Skye does too much damage to Io and Io doesn't have a good escape or anything that can cleanse Skye's poison. Though when Skye tries to ult the point, you can ult as well to immune the damage. That's about it though.
Barik has too many defenses against Atlas. His shield stops Deja Vu, or he can Rocket Boots to escape the rewind. He can also set a turret on the other side of your field, and rocket boots back behind his shield.