That downside isn't enough to knock this card off our list - because MTG sliver decks are heavily focused on creatures, this effect will always be worse for your opponents than it is for you
Heck, Sylvok Lifestaff is Bonesplitter in your deck, but one that you can easily get past fifth pick
In Commander games, this can be essentially every turn, so Ledger Shredder can help find cards quicker and grow at the same time
Its the archetypal weapon for just about any battle this side of Middle-earth or Midgar, and there have been a LOT of them in Magic: The Gathering over the years
Heart of Kiran is a 4/4 with flying and vigilance, making it capable of attacking and blocking every turn
It lets you steal cards from your opponents hands, sure, but you do still need to pay for those cards