As of publication, you can still find copies in the wild for just over $5, so if you are going to push the boat out
When you cast that spell, Ogre Battlecaster gets +X/+0 until end of turn, where X is that spell's mana value
(Just under) half the time its going to be a 4/4 green Ox creature token, which is big enough to be significant a lot of the times, though obviously much better than that Avacyn
7: You get an emblem with "If a source would deal damage to you or a planeswalker you control, prevent all but 1 of that damage." Legendary Planeswalker - Ajani Color tag templates(None) Ajani Unyielding +2: Reveal the top three cards of your library
Overall, I dont think theyre good, but at least The Wind Crystal might find a good home depending on how the format shapes up