Secondly, Counterbalance isnt at its best, as their deck expands upon the one-mana and two-mana spells territory which makes Counterbalance less reliable, followed by the fact that they are also running Abrupt Decay which might be accompanied by Golgari Charm post-board
You need a lot of fixing and thus a lot of lands, but equally, you can't dedicate too many slots to fixing and so the sweet spot is much more heavily highlighted that it is in normal cube
The timing issues, which allow you to Ninjutsu in creatures both before and after damage, also made things tricky on MTG Arena
Unless the 'Tog player has been furiously burning his resources to stay alive, that first hit will almost always be in the double digits and you're likely only a Fact or Fiction or two away from it becoming lethal
Having this Legendary in a deck won't be much of a heartbreaker, however, with The Sun Will Set ability making it possible to trigger the deployment of an extra card when Mufasa is banished