Instead of being the one who gets surprised when your opponent casts an instant and boosts their prowess creature, cast your combat tricks to buff your own creatures
Conclusion Each of the Game Changers are powerful in their own right
Jeskai Striker is a great precon, and one of the best you can get in Jeskai colors
As far as kill cards go, you really can't go wrong with Elemental Eruption
Control players keep opponents guessing whether they have board wipes or not, but if you drop a couple of creatures and they destroy one of them then you can guess that they dont have a wipe, indicating that you should follow up with another creature
Red So we have Knowledge Pool, and we have Thousand-Year Storm, and well, Im sure they had a great time together, because now we have Arcane Bombardment