Shatter the Source

Six mana for six damage or an artifact kill is a rate no serious instant would print on its own; the whole card lives on the promise that you will almost never pay full price. Convoke rewrites who covers the cost and when: a wide board turns this into a cheap instant-speed answer, tapping the untapped bodies a token strategy naturally hoards, whether blockers held back on defense or fresh creatures that never entered the attack. The modal split is built for that same go-wide deck, giving one card the two answers it otherwise struggles to find: a threatening planeswalker or battle it needs to burn off in a single window, and the resilient artifact it has no other line to. Six is a deliberate number, enough to erase most planeswalkers and the fattest single attacker at once, and battles sitting on the target list places the card in a specific era of design, when double-faced siege permanents needed a clean answer that was not just combat math. The tension is that the sticker cost and the real cost point opposite directions: on an empty board it is a dead six-drop with nothing to tap, and on a flooded one it is close to free. That swing is precisely what a token deck wants from a late-game topdeck, a card whose cost collapses in step with the board it was built to protect.