mcdonald's pokemon cards 2012 McDonalds stamped promo Emolga is one of my favorite after the Eeveelutions 2012 Pokemon Black White McDonalds

I imagine Elite Arcanist or Fiend Hunter would be ideal too

If they've already attacked, they remain attacking creatures.

Its looking to spend the early turns accelerating its mana, after which it can either cast giant green battlecruisers or hopefully manifest a few creatures to jump scare your opponents with

ELEMENTAL BOND Draw-on-creature-enters effects are a dime-a-dozen in green, and there are even more when you add in the cast-trigger ones

It additionally gains trample until our next turn

According to the good folks over at MisprintedMtg the number of times this has occured can roughly be counted on our fingers and toes, and the known sheets where it has happened are French FBB Revised, Fallen Empires, Homelands, Weatherlight, Mirage, 4th Edition, Ice Age, Japanese Shards of Alara, Battle for Zendikar, Eldrich Moon, Magic Origins, Dragons of Tarkir, Amonkhet, Commander 2020, Jumpstart, and M21