If you are designing custom game piecessuch as the highly popular custom Food tokens for the MTG Marvel release you should use the standard MTG dimensions of 63mm x 88mm (2.5" x 3.5") and design at 300 DPI
This allows for a lot of alternate win conditions, but the colors theyre in also allows you to use every other card on this list, and even copy them if they die
This shell is medium-fast with pretty high consistency, but low resiliency/interactivity
This has the downside of giving your opponent the option of forcing her to flip in order to kill your other creatures---so be careful how you build your deck
So along the way we get to keep choosing a new ring bearer, and eventually our ring bearer is legendary, cant be blocked by creatures with greater power, loots on attack, forces blockers to be sacrificed at end of combat and hits all opponents for 3 if it hits a player
Haste The Balrog cant be blocked except by legendary creatures