mystery booster box magic the gathering Magic: Mystery Booster cards are presented in their original form—original frame Mystery Booster 2 set box

During the Main Phase: Tribute Summon 1 Divine-Beast using monsters from either player's field, even if you do not control them, also if you tributed an opponent's monster(s), you can only activate 1 effect per turn until the end of the next turn, except for Divine-Beast effects

This is oftentimes called the country code, Im not sure why but its a term that been used for so long that its seemed to have stuck

Its time for battle

Sometimes, it can be hard to activate Haven and still present threats in match-ups where racing is important

Phyrexian Metamorph is one of the most popular choices, as its one of the most efficient