Sure, each half costs one mana more than the split half, but you can add in interaction in your creature spots or a creature in your interaction slot and then a beater later to close out the game, and you can get both effects for one card
If this spell was cast from exile, for each opponent, choose an artifact or land that player controls
This card is a total wildcardit can be anything from a Common to a massive Enchanted or Iconic hit
And if Mobilize decks gain any kind of traction in Standard, Sephiroth is going to be trivial to transform
Reflecting Pool is a classic card from this era of Magic that can really help out in multicolor decks, but it comes with a downside: it can only tap for colors of mana that your other lands can already produce
Tapping mana through it like Tower of Fortunes