Its playable for sure, but gain life or deal damage when something enters or dies respectively is an overcrowded deck slot with a ton of competition
While attacking, it doubles ALL +1/+1 counters, making something like Savageborn Hydra a monster to devour your opponents life-points within a split second (Xenagos, God of Revels is a nice addition)
When Karazikar attacks, you get to tap a creature and goad it, removing it as a blocker against Karazikar and forcing one of your opponents to take the attack in a few turns
Players can also purchase single cards from sets on reputable websites to avoid overpaying for rare options
Streets of New Capenna Draft Boosters contain: 1 Rare or mythic rare card 3 Uncommons 10 Commons (In 33% of Streets of New Capenna Draft Boosters, a traditional foil of any rarity replaces a common.) 1 Basic land, featuring a metropolis basic land in 33% of Draft Boosters 1 Token, ad, or counter punch-out card You can purchase Draft Boosters individually and in displays of 36 boosters