?work in progress?

Bestow Unto Plains {3}{w}{w}{w} (If you cast this
card for its bestow cost, it's an Aura spell with enchant plains. It becomes a creature again if it's not attached
to a land.)
Flying, first strike, haste
You control enchanted land. It's a 3/3 white elemental creature with flying, first strike, and
haste, that's still a land.