Arcade Cabinet Arcade Cabinet requires sacrificing tokens to double counters, but it's repeatable, fairly cheap, and provides an anthem-like ability when it enters, which sets up the activated ability right away
Luffy activating Gear Second for the first time during his campaign to rescue Nico Robin at Enies Lobby
Natural Balance (US$5) At first glance, Natural Balance seems to go against what green wants to do
The second exception is Special Guest cards, which have a small chance to appear in the Play Boosters (1 Special Guest in 64 Play Boosters), which are included in the Starter Collection
The exact package above probably isnt ideal to include in the likes of Gruul Prowess, but I could see players trying Tifa out alongside classics like Monstrous Rage for sure
As the Suspend triggered ability resolves, it allows you to cast the spell without paying its mana cost