pokémon trading card game scarlet & violet destined rivals Pokemon: Booster Box (SV10) A Growing Storm of Stellar Strength Destined Rivals Scarlet & Violet

I really like the art on Echoing Assault, too

When it dies, you may put its +1/+1 counters on target artifact creature.) Whenever you cast a spell other than your first spell each turn, put a +1/+1 counter on Arcbound Tracker

Its not clear why this card was targeted (or why now), but it may have been related to the Marnies Morpeko promo card that was released with the Marnie Rival Battle Deck back on May 16, which is also numbered 206 and briefly reached just under $50 in early September

This plays like a removal spell in that you ambush a creature with a surprise 3/3, but a 3/3 isnt the most impressive creature in the context of EDH