Helix Pinnacle's triggered ability has an "intervening 'if' clause." That means (1) the ability won't trigger at all unless Helix Pinnacle already has 100 or more tower counters on it as your upkeep begins, and (2) the ability will do nothing if Helix Pinnacle has lost enough counters such that it has fewer than 100 counters on it when the ability resolves
If youre unsure where to start, grab a starter deck from each game and play a few test matchesCherry keeps starter products in stock so you can trial all three without a huge investment
[G][G][C] Emerald Blade: 200 damage
Xorn, Goldspan Dragon, Crime Novelist, Rain of Riches, Kalain, Reclusive Painter, and the new Mastermind Plum are all amazing once youre committed to generating and using treasure every turn
Theres a global market for Pokmon cards, and while its easy to find out the price of vintage cards, there are plenty of collectors willing to shell out to buy the rare cards
Strength aside this type of "whole table interaction" is quite fun and I think most players would enjoy it - Even if they do end up getting overrun by a scurry of Squirrels