Its difficult to duplicate
Take all the turns, keep turning all your lands into creatures, and then ultimate your Nissa
You do want to ensure you dump at least two big things out with it however and so it will put some build constraints on your list should you wish to use it
Second, despite some complaints from the community, the value of Commander 2019 is actually quite solid
5 Latias EX: Dragon Frontiers (Delta Species) $68.20 Melting Through The Ice This Latias ex gives this typically timid and serene Pokemon one of the fiercest possible backgrounds, as Latias leaves a trail of fire in its wake in this gorgeous Dragon Frontiers card
As such, you can treat your Legendaries as ramp to cast bigger threats later in the game but thanks to Esikas vigilance ability, these can also get into combat if required