It should also be noted that EX cards are older, and transitioning out of the Pokmon Trading Card Game, meaning building around them is getting harder as they become more and more outclassed
BZNintendo did not go into detail as to how players catch Pokmon, but they did explain that the battle system in the game works similarly to the one found in the video games - with players needing to remember type weaknesses, as well as take into account the differences between special and physical moves
Mew EX #003 from Chinese limited Promos
Emry's deck can use free artifacts like Ornithopter and Mishra's Bauble to build up a "storm" count for Aetherflux Reservoir, or it can stock up the graveyard to make someone lose the game outright with Mirrodin Besieged's Phyrexian mode
Exile Extinguish the Light Faith's Shield Faithful Mending Fall of the Gavel Feed the Cauldron Feed the Clan Fell the Pheasant First Family Flames of the Blood Hand Flare of Fortitude Flash Conscription Fog of War Folk Medicine Fortifying Draught Foul-Tongue Invocation Foul-Tongue Shriek
But at the end of the day, all we're going to care about is triggering Y'shtola, Night's BlessedY'shtola, Night's Blessed to draw cards