Brotherhood Spy's ability will trigger only if you control a legendary Assassin when your beginning of combat step begins
What if the Card I Gifted them is a Counterspell
A 4/5 trampling body is much much better than a 5/3, it might well still be better than a 5/3 and a 3/3 token too
3 Gix, Yawgmoth Praetor A stellar new mono-black commander option, Gix, Yawgmoth Praetor is an efficient three-mana Phyrexian Praetor that excels in providing card advantage
Its worst matchup, by far, was B/Y Luffy
Thats why its a good trade for us to exile one card from our hand to get the tempo advantage when we are on a draw Since Gemstone Caverns enters the battlefield before the game starts and the first turn in the game is the opponents, its important to have enablers that will fully benefit from the fact we have this one extra mana source on the turn zero