A spell or ability counters a spell only if it specifically contains the word "counter" in its text
While the original voice cast from the first 64 episodes was still used, the show no longer edited quite as much, used the original music (including the original Japanese opening and ending themes), and adapted their scripts directly from the original Japanese scripts rather than from the revised English scripts
A further explanation for not banning the troublesome duo from the Lord of the Rings MTG set is that "Not many games are quickly decided by a runaway from either The One Ring or Orcish Bowmasters, allowing players to play longer interactive games with plenty of back-and-forth." As for the unbannings, Preordain, a card banned since 2011, is back in Modern, and Mind's Desire, which was swiftly banned in 2003, is back in Legacy
Cameo Mechanics Basic landcyclers return and are useful as usual
Theres as much reliance on the luck of the draw as any TCG - the starter decks I played with didnt have too many abilities allowing players to draw extra cards, though there are definitely cards in The First Chapter with greater card draw effects - and it feels closely balanced to avoid players being steamrolled without good reason