Tokens are generally considered weaker game pieces compared to other cards, but they are able to provide excellent results in game in large enough densities
It also notably turns the 'borrowed' creature into a Pirate for the turn, which is way more significant than it sounds
This includes , and Ice Age/Alliances , Mirage/Visions/Weatherlight , Tempest/Stronghold/Exodus , Urza's Saga/Urza's Legacy/Urza's Destiny , Mercadian Masques/Nemesis/Prophecy , Invasion/Planeshift/Apocalypse , Odyssey/Torment/Judgment , Onslaught/Legions/Scourge Mirrodin/Darksteel/Fifth Dawn and does not include base sets or pre-Ice Age sets
Im not sure why it doesnt work with commanders, but there are plenty of other targets to choose from
I'll be the first to admit it
Your opponent gets boxed between running into your sweepers or getting buried by incremental card advantage