I think Omnath is giving us a very important signal with these specific cards
(You may cast a spell for its web-slinging cost if you also return a tapped creature you control to its owner's hand.) Playing with Modal Double-Faced Cards To determine whether it is legal to play a modal double-faced card, consider only the characteristics of the face you're playing and ignore the other face's characteristics
There are no restrictions except, of course, cards on the ban list
When Bright-Palm, enters the battlefield, for example, the creature that Bright-Palm targets would get a +1/+1 counter and its ability until the end of the turn
Redundancy - Most commanders in this Tier, have more than one efficient wincon or when they just have one, they can protect it really well
Even without a solid combo on board, it synergizes with so many other cards it can be overwhelming