Like most Magic: The Gathering cards, the value of Kenrith, the Returned King depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Multiverse Legends)
For wider boards, Deadly Cover-Up gives you another board wipe option, at a better rate than Rupture
In a deck full of Spider creatures and a healthy noncreature spell suite (removal, card draw, ramp), Madame Web can take over a game that goes long
Breloom is classified as a 2-Diamonds card in the Pulsing Aura set
Sing them lullabies (optional)
During your Standby Phase, if this card is in your hand or GY and your opponent has more cards in their GY than you: You can Special Summon this card