cards now have special star branding on them to indicate their rarity, which is helpful for those who don't follow the TCG online and need a quick reference to the card's rarity
If you cast Twin Bolt with two targets and one of those targets becomes illegal before Twin Bolt resolves, the remaining legal target will be dealt 1 damage
Demonic Tutor isn't going to be able to help you, because it would need you to run Meltdown in your main deck, and the number of times you'll lose by drawing Meltdown in matchups where it does nothing outweighs the times when Meltdown is the perfect card to win you the game
Every modern set has 26 SARs, and the highest-value one is almost always the sets chase card Nanjamo SAR in SV2a 151, Bellibolt ex SAR in SV2, Iono SAR in SV2a, Mamane (Sophocles) SAR in SV5M, and so on
I think it is very strong against Mono Green, and actually fairly good in the mirror match against Mono Black, but otherwise way too easy for an opponent to remove