Our Dragons Are Different: Like in the real life card game, there is no Dragon Energy, so Dragon types need a mixture of other Energy types (Water and Electric for the Dratini line, Water and Fire for Druddigon, Fighting and Electric for the Jangmo-o line, and so on) to use their attacks
After all the time and effort I put into getting to Worlds, let me tell you that winning your first match is nothing short of euphoric
It's pretty strong, so you'll want to add in haste where possible, since each dork you control with power greater than their base power gets +1/+1 counters to grow permanently equal to the difference, and then will do it again
They'll go into your opponent's graveyard
There are cards like Wingmantle Chaplain and Shield-Wall Sentinel which also care about defenders