Additionally, it is essentially a one-sided boardwipe, in our favor since our primary goal is to have a lot of tokens
Brass's Tunnel-Grinder / Tecutlan, the Searing Rift Brass's Tunnel-Grinder is a good rummage that requires you to descend for three turns straight, but the grind is worth it because Tecutlan, the Searing Rift turns one spell per turn into a second full card
Since then, power creep (and general player interest) has seen numerous creatures printed with 12 power (including an uncommon, Quakestrider Ceratops, in Foundations ), but Phyrexian Dreadnought retains a certain cachet among old-school Magic heads (like myself)
So unless this manifest dread deck suddenly takes off, Threats Around Every Corner should be a cheap pickup
Finding ways to fill your graveyard up to keep Lightning Helixing your opponents and their creatures sounds like a good time to me
Find some Twiddle effects and tap/untap until youre ready to win with Thassa's Oracle