You also need to make sure you hit your land drops, either with draw effects (Qiqirn Merchant and Adventurers Airship provide usable bodies as well as draw smoothing) or cards that directly give you lands or mana (World Map, landcyclers, Blitzball)
But Hexing Squelcher makes it so that "spells YOU control" can't be countered, whereas Spider-Punk does it for ALL spells
This Glissa's at its absolute best with cards like Executioner's Capsule, which just rebuys itself whenever you use it to kill a creature
Check out the first five examples: Pact of Negation, Seasons Past, Sylvan Tutor, Shelob, Whose Lair is Death, and Abyssal Persecutor
Excavation Technique Like the previously mentioned cards, you can destroy your permanents and add more mana with Excavation Technique
Most notably is partner with sibling Alphinaud Leveilleur who combine to a decent two spell commander