We all know by now how broken delve is, and getting a 4/5 for 1 mana is strong
Dont let them take you for a ride on any specific card, but the increased cost would be put to good use if the margin is reasonable
We added a few cards to this list that interact with +1/+1 counters, like Herald of Secret Streams and Abzan Battle Priest, which are not Dogs, but make sense in the deck
Understanding what a mana ability in MTG is is crucial here, as this zero-cost rock gives you the biggest jump available on turn one
With the Caretaker around, you get to put two +1/+1 counters on another creature you control at the start of combat on your turn
However, it has been a controversial ability ever since because its so complex