So, if I activate Teferis +1 ability, he gets another loyalty counter, in addition to the abilitys other effects
Since so many sweepers that are commonly played deal damage, just prevent it once from Prahv and you will stop so much other stuff
Among these, is the popular "Jessie - Lively Cowgirl" who currently has the most expensive Enchanted card from the set
I have only anecdotal evidence, but I have found recruiting people to Magic is always easier when you let them build their own deck, or at least choose/open their own precon
Aside from just filling your hand with more great Knights with this trigger, it can also be used to find powerful cards like Sword of Feast and Famine and Animate Dead
If you do, you gain 4 life, draw four cards, put four +1/+1 counters on him, and he deals 4 damage to each opponent