It definitely fixes your mana, and in games that go long enough that Clue is gonna feel pretty nice, but not doing anything to add to the board on turn three has been a liability in most formats of late
This effect isn't new, appearing on cards like Rite of Oblivion and Invasion of New Capenna // Holy Frazzle-Cannon, but there have only been a handful of creatures that do this
Tiered puts each tier of these elemental spells onto the same modal spell
Now, seven years on, hes been relegated to fringe playa 0/2 is too easy to deal with, and keeping five cards in your graveyard is a bit of a challenge in a world where everyone has access to Scavenging Ooze, Graveyard Trespasser, or Unlicensed Hearsebut that painful autumn of Moist Jund and Wet Abzan endures
1 Sacred Foundry
However, now that the set has been released it would seem that Wilds of Eldraine is, if anything, a step away from the high power philosophy that gave us cards like Oko, Thief of Crowns