Its still great with Siege-Gang Commander, but no one cares about a 2/2 haste, and most of your Goblins dont benefit all that much from cost reduction or haste
A turn 5 play on turn 4 is nice, but a turn 4 play on turn 3 is still a big deal in its own right
Each Secret Lair DnD drop will retail for $29.99 USD, with the Foil Edition going for $39.99 USD
For just three mana and sacrificing an artifact, Tinker lets you tutor any artifact in your deck directly onto the battlefield, which allows for things like a Turn 1 Blightsteel Colossus or God-Pharaoh's Statue or Bolas's Citadel, all of which are pretty close to unbeatable
This is especially true for commander cube if you support dragons as they're making a bunch of dragons that are not red, adding more density to enable the 5c dragon deck that I keep trying to make a reality
Being able to prevent damage to your creatures is good, and its even better when your commander has mana sinks built into them
