Sometimes cards have more than one type, so something like Dryad Arbor is a creature and a land at the same time
Felisa, Fang of Silverquill is all about the +1/+1 counters, with some useful wrath insurance
The price for the easier mana of a Temur commander instead of all five colors is losing access to powerful cards like Rivaz of the Claw, Taigam, Ojutai Master, Ancient Brass Dragon, and the other 5-color dragons
If you are a cEDH player, the card probably doesn't bother you too much
The graveyard hate ability of Endurance can be useful against graveyard-focused strategies, and in Limited format, this is important since there is a graveyard archetype in the set
You should also check out our MTG release schedule guide to see every set that's confirmed from now till early 2026.