Power and combat aside, Zell is a mighty enabler for a lands matter deck, and though I can't picture slotting it into anything other than a landfall commander deck, it stands as a decent card as is
1 Spell Swindle
The StrixStrix was originally printed in Planechase 2012 and reprinted myriad times across various Commander products often with Nils Hamms masterful artwork from its original printing
His ability blocks actions, full stop
MTG PRINT 45 cards 2010-06-18 You get what you see, make sure to double click on images to zoom in and verify sharpness You get what you see, make sure to double click on images to zoom in and verify sharpness You get what you see, make sure to double click on images to zoom in and verify sharpness

Agent Char Amber C 13/204 Shanti Village Girl Char Amber C 14/204 Flash Records Specialist Char Amber C 21/204 Goofy Ghost Hunter Char Amber C 22/204 Della Duck Returning Mother Char Amber C 28/204 Dellas Moon Lullaby Song Amber C 33/204 Munchings and Crunchings Item Amber C 38/204 The Horned King Heartless Devil Char Amethyst C 39/204 Cauldron Born Mindless Horde Char Amethyst C 40/204 Demona Betrayer of the Clan Char Amethyst C 41/204 Magica De Spell Shadowy and Sinister Char Amethyst C 42/204 Lena Sabrewing Mysterious Duck Char Amethyst C 44/204 Violet Sabrewing Senior Junior Woodchuck Char Amethyst C 45/204 Elsa Exploring the Unknown Char Amethyst C 46/204 Mushu Braggin Dragon Char Amethyst C 61/204 Begone