The factors that make certain Pokmon cards more valuable than others include rarity, condition, age, and popularity of the featured Pokmon
When The Warring Triad enters the battlefield, the number of cards in your graveyard will determine if a creature entered the battlefield or not for abilities that trigger whenever a creature enters the battlefield
Although I can see this being played in Commander, it is going to need to go into the right deck
Think of it kind of like an Aura attached to the protector instead
Theyre also very easy to yet also a chore to find specific cards and they may look terrible unless you get the expensive ones
They basically have the same effect as actions, but when you play them on a corresponding character, they sometimes have a stronger effect, and most importantly, a lower cost