You can find full details in our guide to MTG deck archetypes - but here's a short summary of the six types and how they play: Aggro - Win fast with aggressive damage, mostly using creatures
9 Switch Switch is simple, allowing you to switch your Active Pokemon with a Benched one for free
Of the three, Catacomb Sifter is easily the most powerful, so thats where I gravitated: Creatures (21) 4 Catacomb Sifter 4 Sylvan Advocate 3 Deathcap Cultivator 1 Tireless Tracker 1 Ishkanah, Grafwidow 4 Grim Flayer 3 Verdurous Gearhulk 1 Noxious Gearhulk Planeswalkers (6) Lands (24) Spells (9) This list is a bit slower than the G/W list, but in exchange it gets to take advantage of delirium
The counters are, again, the same as the video games and tend to follow an obvious logic, such as fire pokmon being weak to water attacks, but its worth having a look at a glossary before you start, to familiarise yourself with the sheer number of cards and what they can do