As long as you hit with a big dragon or find a source to deal enough noncombat damage for the backgrounds trigger, then you get a Dragon token on each of your end steps
Its certainly possible that we might see some new types in the future, but I wouldnt be surprised if the main types that we have now will stay the same for years to come
Even the power-hungry sorts who are specifically trying to double the starting loyalty of their planeswalkers can turn to Vorinclex, Monstrous Raider
There are not all that many effects that allow people to easily expend the first target trigger from Kira but she is obviously much weaker when she does encounter them
After years of avoiding Magic: The Gathering, the new Hatsune Miku set looks like the final nail in the coffin for me Time to invest
In those cases, colored mana consistency is key, so think twice before swapping out a basic land for one that cant produce the color you need