While it technically costs seven mana to cast, mana can’t be spent to play Hogaak.
Upon entering the battlefield, The Mimeoplasm can exile any two creatures from any graveyards.
Once in play, Karador allows you to cast one creature card from your graveyard.
Muldrotha, the Gravetide by Jason Rainville
Olivia is a 3/4 with flying and haste for six mana with an excellent attack-based triggered ability.
While this cost may be steep, Muldrotha provides incredible access to your graveyard.
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