If Feldon were black instead of red, I could see him staying at $3-$4
Use clean hands to prevent smudging or transferring oils onto the card
Trading two Prize cards for one is a great deal in any phase of the game, and Scizor is well equipped to do just that

For removal, run creatures aswell, id get Foundation Breaker, Druid of Purification, Bane of Progress, Haywire Mite, Reclamation Sage, Voracious Hydra, Acidic Slime, Duplicant, Kogla, the Titan Ape, Meteor Golem, Terastodon, Woodfall Primus, Ulvenwald Tracker For draw, run creatures aswell (your starting to see a synergie?) Beast Whisperer, Voice of Many, Toski, Bearer of Secrets, Augur of Autumn for ramp you have the mana dorks, Sakura-Tribe Elder, Fertilid, Wood Elves Elvish Pioneer, Primeval Herald, Skyshroud Ranger, Selvala, Heart of the Wilds For bombs, id run creatures that already have trample, Defiler of Vigor, Neverwinter Hydra, Ochre Jelly, Kalonian Hydra, Aberrant, Craterhoof Behemoth and a tutor: Fierce Empath some other cards i would consider Champion of Lambholt (makes your creatures unblockable, Saryth, the Viper's Fang hexproof untapped, deathtouch when attacking (insanely powerfull with big trample creature)
Now its got lifelink