Opponent plays tangle wire with 4 counters on it.
On my upkeep the trigger goes on the stack. In response I weld it out. Do I need tap anything for tangle wire?
Same with with smokestack. Say 2 counters are on smoke stacks but I weld it out. Do I need to sacrifice 2 permanents or none?
Goblin Welder:
: Choose target artifact a player controls and target artifact card in that player's graveyard. If both targets are still legal as this ability resolves, that player simultaneously sacrifices the artifact and returns the artifact card to the battlefield.
Tangle Wire:
Fading 4 (This artifact enters the battlefield with four fade counters on it. At the beginning of your upkeep, remove a fade counter from it. If you can't, sacrifice it.)
At the beginning of each player's upkeep, that player taps an untapped artifact, creature, or land he or she controls for each fade counter on Tangle Wire.
Smokestack:
At the beginning of your upkeep, you may put a soot counter on Smokestack.
At the beginning of each player's upkeep, that player sacrifices a permanent for each soot counter on Smokestack.
Basically do these events use last known information or not?
