The struggle might be trying to fit it into the existing removal rotation without leaving yourself with too many spells, or not enough copies of Sear
You can do this as many times as you want: pay two generic mana to activate Isochron Scepter and cast a Final Fortune, then end the turn early with Sundial of the Infinite before you lose
The trigger to pay 1R can be paid when your opponents attack, too, meaning they will do way more damage to other opponents but crucially the same amount of damage to you, as it wont increase when they attack you
This unassuming 2-mana instant packs exactly the kind of flexibility any Green deck needs: it destroys an artifact, an enchantment, or exiles a card from a graveyard AND replaces itself with a card draw
First of all, it can exile a creature of 3 or more power, which is a great default setting to use to blow stuff up nice and easily