Goblin Tutors Goblin Matron, Goblin Recruiter, Moggcatcher Goblins have been a force to be reckoned with in Commander for over a decade, traditionally headed by cards like Krenko, Mob Boss to make dangerous swarms or Purphoros, God of the Forge to inflict massive damage to the table in and out of combat, but plenty of other color combinations and strategies are quite viable too
Nature's Claim gives the opponent some life, but there are plenty of decks that couldnt care less about a little life if it means destroying something like Leyline of the Void
On top of that, the card itself was considered the most powerful in the game and was highly coveted for that reason
Players will receive the same card set for each starter pack in every reroll
The first player is usually heavily advantaged in modern Magic, and designs like Lonely End and Sylvan Smite give the second player more stabilizing potential when playing from behind