Players can't respond to your choice of +1/+1 counter or haste, and they can't take actions while the creature is on the battlefield without one or the other
Uncommon cards frequently point you toward a set's draft archetypes, reward specific strategies, or provide efficient effects that are just a bit too strong or complicated to show up at common
9 Anowon, The Ruin Thief Rogue Buff, Deck Mill, And Card Draw Immediately, Anowon, the Ruin Thief is valuable for Rogue decks in that it gives a flat +1/+1 bonus to all of your Rogues, which they sometimes desperately need to compete with most other creature types in terms of damage
Though there are plenty of legendary Dwarves, only Depala, Magda, and The Lady of Otaria are really suitable to lead a Dwarf Typal deck