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
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
Cankerbloom Cankerbloom is an altogether well-rounded card with good stats for its cost and a flexible set of abilities
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