You could go infinite with spell copying or just generate lots of mana on the end step and deal damage/draw cards in conjunction with Wilderness Reclamation or Ral, Storm Conduit
There are plenty of ways to bounce things back to your opponents hand from play in both Emerald and Amethyst, so this card can pile up the lore pretty quickly
Price list of every MH1 most valuable MTG cards The Modern Horizons price list of cards worth money is based on secondary market values from MTGGoldfish and MTGStocks
Most goblins printed are in red, so it is a natural fit
If your opponent shocks themself with their lands or Thoughtseize, or they pay life to draw cards, its a whole different ballpark
I kind of hate this, as it meets a toxic player with more toxicity, but this seems to have been a part of Richard Garfields original plan for the game, so maybe this is worth an occasional consideration