Despite his vastly anti-human nature, Ojutai took in Narset as his student and allowed her to continue her life and studies after learning of the original Khans and the time before the Ojutai rule
Something that could be both a blessing or a curse, depending on your perspective and whether youre the one casting the spell, is that this card can be stopped by a card like Drannith Magistrate
Considering that shrine decks are usually five colors, its a card that should see play in these decks, because its good at any point in the game
When an MTG Battle card is played, its controller chooses a player to be its protector (there are restrictions on this depending on the Battle type)
Erkenbrand, Lord of Westfold's triggered ability affects only creatures you control at the time it resolves
There's a fantastic article on the logistics of such a cube called - The Proper Way To Do Two-Player Cube Drafts, where the author breaks it down in great detail, and I suggest you check it out