Smothering Tithe illus
Trigger doublers are already a good start, and theres lots of potential subthemes to explore with Isshin, like myriad, mobilize, or firebending, to name a few mechanics
While the original version can be had for just over $1, the foil version is extremely rare and is worth nearly $30
Here are my personal Top 10 Goblin creature cards: Goblins can't do what elves do to repeatedly generate massive amounts of mana, but they can sacrifice their lives for the greater good thanks to Skirk Prospector
Up until now we only had one "free all the time" Counterspell in Decree of Silence that was a hard counter with its cycling trigger, and other counters that were sometimes free needed conditions, like Force of Will's pitch ability
This clunky instant doesn't even cantrip (card draw bonus) or let you scry 1, as many blue cards do