Combine some excellent Boros (white/red) cards in your deck that synergize with this ability, such as Defiant Strike or Fists of Flame, and you can give your creatures some nasty buffs and keywords as much as you like
Given that we need time to set Dragonite up, we will need to depend on low-Energy cards that delay the opponent from setting their Pokemon up, or are able to attack hard, and quickly
Fellwar Stone is an oft-overlooked mana rock that is likely a strict upgrade to one of the Talismans in Deep Clue Sea
This article explains how trample works in MTG covering rules, examples of how it can be used, the best trample cards, trample decks and frequently asked questions about trample
The most impressive and expensive of these are full art cards
You can build more decks as you play the game and get more cards