2 Nuclear Fallout (Showcase, Surge Foil) Price $89.01 A new black board sweeper is always a reason to celebrate, and the added rad counters are just radical (if you'll pardon the pun)
In terms of how voracious it can get, Pocket doesn't exactly advertise its subscription, and as such doesn't offer ways for those more vulnerable to manipulative mechanics to spend hundreds of pounds in a moment of weakness
Bottle-Cap Blast + Hell to Pay Two variations of red burn spells that also produce Treasure tokens
Loot has three different Exhaust uses, all tied to its color identity - the Green one adds three mana of any one color to a player's pool, the Blue one allows the owner to draw three cards, and the Red one deals three damage to any target
It has a whole slew of ways to trigger life gain, whether through a Soul Sisters strategy that lets your creatures cause you to gain life when entering or by granting life gain or even through limited-use alternate triggers