Was I the asshole in this situation?

>playing Bill Ferny as a joke deck
Other players are playing Ashaya and Arabella
>friend in the pod is playing the new Jeskai Tarkir precon with a lot of upgrades
>he gets out omniscience very early with no maximum hand size and has Narset Jeskai Waymaster
>basically is dumping all his creatures on the board and playing instants and sorceries out of the Wazoo
>Bill Ferny and his gift horses have given me enough mana to kicked Slinn Voda and my changeling shenanigans mean that a lot of my cards don’t get sent back to my hand
>friend is annoyed but he has no maximum hand size so can play them all again next turn
>next turn he brings them all back in
>I play engulf the shores and return all their shit back to their hand again, then I cast nezahal primal tide
>they’re getting mad
>he casts all his cards again
>I’m swinging with Nezahal and Blackblade reforged Slinn Voda and an Eldrazi, then I flood of recollection and engulf the shores again (exile Nezahal so he survives and bring him back)
>ashaya and Arabella are also fuming because Ashaya planned on all their creatures being indestructible and Arabella has lost their tokens three times now
>they all set up their board states, Narset player plops ten creatures on the field but can’t kill me cause only one has haste
>my turn and I play split the party and return half his creatures to his hand, then play trade the helm and give him a horse for his big ass dragon that lets him look at the top seven cards and play instants or sorceries from it
>so mad that path to exiles it and chaos warps my Slinn Voda for a horse, is dumping all his removal on me and comboing off
>somehow I get Blackblade Nezahal in for a hit and he goes down to one health
>Arabella pings him to death next turn and he explodes on me
>other players are also upset with me
I don’t see the issue. They’re playing $300 decks and I’m playing jank from my bulk