When a creature with a bounty counter on it dies, each player except its controller draw a card and gains two life
Nanogene Conversion Echoing Doctor Whos fan-favorite Empty Child episode, Nanogene Conversion temporarily has your creatures all become copies of a single creature of your choice
Unless you have a strong art preference, it's best to save your mythic wildcards for cards that don't have a lower-rarity version
We know how much kitchen table players love their graveyard as a second yard
Emeria Shepherd did far more recursion than the land, and it's a seven-mana angel that requires a land drop to trigger, so I often recommend her than Emeria, The Sky Ruin
They can really take off, however, with some help from special creatures like Bartz And Boko, Sazh Katzroy, and Traveling Chocobo (not the super-expensive serialized version)