list cards mtg Ten of the Dumbest on the Reserved If target opponent has more cards in hand than you Catalog - The List Reprints

Its because it doesnt actually look like a shield, and looks more like a dandelion, which ties into the whole Bloomburrow aesthetic

Seer is like a Putrid Imp in a Reanimate deck when you could just play the far better Careful Study instead etc

For that reason, he's at the bottom of the list

Between enter the battlefield effects, triggered abilities, and other synergies, it's often the case that playing a creature provides an opponent with much more value than just the creature's board presence

It turns out, burning all players for X while also simplifying the board is good, especially if you have a higher life total than said opponents