You don't have to choose every permanent or player that has a counteronly the ones you want to add counters to
Another important addition is Hypnotic Deduction, which not only provides some card draw to the deck, but also manipulates the top card, so you always know what you'll hit with Powerline - World's Greatest Rock Starwithout a doubt, the best card in the deck
Others have become more strongly associated with their respective Constructed archetypes most players would likely connect Through the Breach with Emrakul and Zendikar before thinking of Kamigawa, or Glimpse of Nature with Elves
Nightshade Harvester, Fate Unraveler, and Rampaging Ferocidon are all great ways to ensure that timely damage is dealt
It drops the cost of all historic stuff by one
This would probably be enough to make Katilda worthy of this list, but you can also pay six mana and tap them to put a +1/+1 counter on each creature you control