japanese grimer pokemon card cards (Japanese TCG) – TCG Collector showcasing classic artwork. Grimer #88 1997 Pokemon Japanese

Even if you don't want to make a for sure plan, as long as your mana base is in good shape, you should be okay to just play around with throwing in awesome cards

When an instant or sorcery spell with escape resolves (or is countered or otherwise leaves the stack), it returns to its owner's graveyard

You can't respond to the backup ability by giving Boon-Bringer Valkyrie additional abilities and have backup give those abilities to the backup target

If one of the target creatures you control is an illegal target as Graceful Takedown resolves (perhaps because it's no longer enchanted or is no longer on the battlefield), the remaining legal target creatures you control will still deal damage equal to their power