It will take you a while to learn the rules entirely, but after 2-3 playthroughs, you'll be able to do it without referencing the rulebook
Changing power/toughness Another trick up blue's sleeve is that it can change the base stats of a creature, making it less of a threat
If you roll the planar die in a Planechase game, you can remove a +1/+1 counter from Xenosquirrels, but you can't alter the result of the roll
Im including both cards with cascade and cards that give spells you control cascade
Favorable Winds, Windstorm Drake, and Cynette, Jelly Drover pump your entire flying army
Get a refresher on the basics of what grading is and why people do it in our article What Are Graded Cards & Why Grade Yours