Summon: Leviathan is a board wipe returning each creature that isnt a Kraken, Leviathan, Merfolk, Octopus, or Serpent to its owners hand
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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)

Plus, things like Eldrazi Temple, Urza's Mine, Urza's Power Plant, and Urza's Tower for even more top-end and explosivness
PT (16:00 UTC), to win a pair of Play Booster boxes by sweeping up with six wins in Duskmourn: House of Horror Sealed Best-of-One matches
In that case, Copy Land simply enters the battlefield as an enchantment with an irrelevant ability