Here are the other cards I might want: Sol Ring Arcane Signet Rakdos Signet Commander's Sphere Thought Vessel Fire Diamond Charcoal Diamond Mana Base The mana distribution of your deck depends on how many colored sources you run and what your curve looks like
It may initially seem like a relatively weak effect, given that lands enter untapped by default, unless otherwise specified on the land itself
And while I am tempted to give it to RancorRancor for that flexibility, let's be honest, it doesn't even approach that of Mother of RunesMother of Runes
Hardened Scales adds more +1/+1 counters to friendly creatures when any such counters are put on them, which adds up quickly
It is strongly recommended that beginners avoid the format not just because of the exceptionally high buy-in but also the fact that both formats are exceptionally fast and punishing
Its not a top pick, though, unless you have a creature bomb you can copy on the battlefield