The budget difference between tiers is significant
The core of Pokmon TCG Pocket is about opening packs and collecting cards, and there are opportunities in the game for you to collect some cards for free
Aspect of Mongoose Brilliant Halo Cessation Despondency Diabolic Servitude Eye of Nidhogg Fallen Ideal Fiery Mantle Fool's Demise Fortitude Giant Inheritance Glistening Oil Induced Amnesia Launch Rancor Sleeper's Guile Slogurk, the Overslime Slow Motion Sluggishness Spine of Ish Sah Spirit Loop Spreading Algae Twilight Shepherd Undying Rage Weatherseed Totem
Pokmon TCG Pocket also lets you check the possible cards you can pull from each booster pack, along with the pull rates for individual cards
Only hitting instants and sorceries is a little restrictive, but this is still one of the best counterspells in the game
In terms of how the rankings are organized, the last place slot is designated as the best worst card, meaning that its the most playable