(You can still play a companion if you had it in your hand, as you would any other creature)
For starters, only one monster can be normally summoned per turn, meaning that unless the player begins their turn with the means to special summon included in their hand, the Synchro summon would take at least two turns
I wanted to have each version of each card printed with the duplicated being the rarest print of that card (Example: 1 non holo and 3 reverse holo) or (Example: 1 holo and 3 full art) This collection is for my son
Lucky, The 13th Puppy This deck excels at having a wide board with too many characters for your opponent to deal with, and Lucky, The 13th Puppy helps you accomplish that, then rewards you for doing it
Released in the spring, Ikoria: Lair of Behemoths introduced the ability for players to combine cards together to create monsters using the mutate keyword
they're risk management