As mentioned in the Project Page, the M: TG rules have not been changed in any way. The standard rules of the game still apply:
Draw Phase – During this phase, you draw a card
Untap Phase – During this phase you untap your cards
pkeep Phase – During this phase, you pay upkeep costs and upkeep effects are resolved
Main Phase 1 – During this phase you cast spells, including creature spells and sorcery spells
Combat Phase: Declaring Attackers – During this phase you declare attackers
Combat Phase: Declaring Defenders – During this phase your opponent declares defenders
Combat Phase: Dealing Damage – During this phase damage is dealt to creatures and players
Combat Phase: Closing Combat – During this phase you may cast instant and flash spell
Main Phase 2 – During this phase you may cast additional spells
End Phase – This is when you discard cards in excess of 7 from your hand
You can find a full rules set in the official M: TG page Wizards of the Coast
MTG: Pokemon 