With offspring, that's two damage, and it's easy to see where this is going - it's an alternate win condition in grindy games and its unearth ability means it can come back to provide that effect for one extra turn whenever it's most relevant
On top of this, Hakbal can also ramp you by attacking, but you do need to buff him so he'll survive combat -- which the deck also provides
That gets a pretty spot-on mirror in the card Sin, Unending Cataclysm
Being able to grab the Not again Revenant in Stronghold , Saffi Eriksdotter in Time Spiral , and finally Hans Eriksson in Commander Legends (with an Ach
Combat tricks and protection spells like Outmuscle make each attack lethal and safe
Packs add significant chase potential like the Charizard ex SIR, currently valued currently at over $200 ungraded, and over $1,000 for a PSA 10