Other Budget Upgrades To Consider Tricky Terrain is focused almost entirely on lands, but Omo's ability works just as well on creatures
Thats 13 total damage that your opponents have to contend with
Once The Soul Stone is harnessed, harnessing it again has no additional benefit
It also has the potential to be the biggest eldrazi, caring about not just cards exiled with its own abilities, but from anywhere, making it paltry to get plenty of +1/+1 counters on it without casting

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Theyre low investment decks that often want you to play less in-demand cards