That token only sticks around for the turn, sacrificing itself at the next end step, but does let you double up on all sorts of artifact cards with oppressive abilities
The art is cool, too
Coven checks for three or more creatures you control with all different power values
Horizon of Progress is basically a second Waterlogged Grove that occasionally ramps an extra card, which is pretty good for a land Im running for flood insurance
Ive got Tooth and Nail in here as a reanimation spell, mainly because its a nice way to put two creatures that youve naturally drawn onto the battlefield that you may not otherwise be able to cast, though if youve enough mana to pay the entwine cost, by all means go into the deck and put the two biggest and baddest creatures onto the battlefield
The fact that split cards change whether its in your hand, graveyard, or on the stack is important because of how rules consider each spell