Here are my personal Top 10 Goblin creature cards: Goblins can't do what elves do to repeatedly generate massive amounts of mana, but they can sacrifice their lives for the greater good thanks to Skirk Prospector
All of them are great: well either return a card from our graveyard (with the possibility of getting to choose that card if we roll a 20) or draw cards
It's also possible to place this on an opposing creature if it gives you more bounce for your buck, but then you'd lose that counter
That burn will trigger Ob Nixilis, Captive Kingpin's effect, which will give you more cards to work with when your turn comes along
Image via Wizards of the Coast LLC Tekuthal, Inquiry Dominus Tekuthal is another piece for poison counters archetype that will swarm standard this season
Diablo also has a unique shift requirement, having you discard an action card to be able to shift him onto another Diablo character