For the sake of simplicity, lets call all of these cards "cyclers" (that all can be cycled), and my selections meet the criteria of either a) costing a single mana to discard, b) providing additional value when cycled, or c) ideally both: Greater TanukiGreater Tanuki, Altanak, the Thrice-CalledAltanak, the Thrice-Called, and Shefet MonitorShefet Monitor serve as ramp sources, while Generous EntGenerous Ent, Eagles of the NorthEagles of the North, and Spinewoods ArmadilloSpinewoods Armadillo can help with hitting land drops
Yore-Tiller Nephilim Reanimator strategies are always fun for me, and Yore-Tiller Nephilim lends itself to a unique combat-centric approach instead of straight reanimation
However, Mewtwo is a very popular Pokemon, so this card might hold its value better than Marnie's Grimmsnarl, for example, but don't expect it to soar with the English version setting its ceiling
PSA 10 rates 25-35% on modern card stock
With the exception of Commander and Brawl, which each have a maximum (and minimum) deck size of 100, your deck has no maximum hand size