Overall, there are plenty of ways to disrupt the opponent's hand, and some of them are more permanent, but Iono is the most efficient way of doing so
Elesh Norn, Grand Cenobite is one of many token-based commander decks, but it does it better than most with its simple but brutally effective abilities
Take out Brinelin and Hullbreaker Horror to give your opponents to build up a board state, and swap the efficient counterspells like Mana Drain and Force of Will for stuff like Disrupting Shoal or Foil instead
Investigate I am a massive fan of clues
Prior to Tarkir: Dragonstorm, blb-124-artists-talent was the latest addition, making it even easier to dig for the birds and sometimes beef up late game burn
Stoneforge Masterwork An equipment that costs only 1 to cast and 2 to equip isnt the end of the world