You can grab removal, protection, pump spells As long as its an instant with a mana value of four or less, Sunforger can cast it from your deck for free
They come in many shapes and sizes, theyve all got different tricks up their sleeves and not one of them is playable for the sake of unblockability alone
Where they have a card like Kiln Fiend, we have a new card in Khenra Spellspear
If youve got the mana, you can do this multiple times on the same turn, which can be game-ending
The Knight is likely better, as First Strike tends to be superior to Vigilance in aggressive decks, and it puts the (not necessarily Basic) Plains onto the battlefield un tapped
The loop is infinite, and thanks to the word may on this card you can just say they each have 11 million +1/+1 counters to end the madness