Once per turn: You can detach 1 material from this card
They will not overwrite effects that modify power or toughness without setting it (whether from a static ability, counters, or a resolved spell or ability), nor will they overwrite effects that set power and toughness which come into existence after they resolve
If its not a land card, they can put a +1/+1 counter on Peth, and then either put the card back, or put it into the graveyard, depending on its potential use
5 Number 56: Gold Rat Of course, the key to victory in any TCG or CCG is getting your hands on the right cards at the right time
Arixmethes, Slumbering Isle Arixmethes, Slumbering Isle is a 12/12 kraken that lies dormant until you remove all five slumber counters, and you can take one off whenever you cast a spell