While I dont have enough information to say for certain that this exactly whats happening, it is very likely that this is the case
When you attack with any creatures, a Cleric, Rogue, Warrior, or Wizard creature you control gains protection from creatures until end of turn, and it explores, either drawing you a land or giving it a +1/+1 counter
Part of this is due to flashback letting you use it twice, and part of it is the political angle for Commander: You can put counters on other players permanents to strike deals or maybe enhance cards like Generous Patron and Nils, Discipline Enforcer
After verified reports of users spending money to rig the vote with hundreds of fake accounts, the poll was cancelled for foul play, and the original results discarded
This includes itself, with its robust 8/8 stats, flying, and vigilance, making it a formidable presence on the battlefield
Besides, this is the only deck in the game with which you have a chance to win before your first Draw Phase