For starters, the card has flashback, letting you cast it again from your graveyard for a higher cost
There are also cards representing the fossils associated with them, the Jaw Fossil and the Sail Fossil, respectively
The more Elves you have in play, the more amplified their abilities become
Utility lands are always valuable and tons of mana for the late game is key for you to cast the biggest spells or multiple spells in one turn
If your opponent casts a bigger creature, you cant steal it, so your options are a little worse and you might need to rely on your following spell to answer it, but if your following spell is a Wicked Wolf, for example, no matter what they cast, you could turn it into a 3/3 and then use the Food you created the previous turn with Oko to kill their creature with your Wolf after making it a 4/4