Since you don't have to tap Skirge Familiar for its effect, you can keep using Skirge Familiar for as long as you have cards to discard
If you understand them, it will save you time
Vampiric Rites
Ikorias Companion Cycle Umori, the Collector Gyruda, Doom of Depths Zirda, the Dawnwaker Keruga, the Macrosage Lutri, the Spellchaser Obosh, the Preypiercer Kaheera, the Orphanguard Yorion, Sky Nomad Jegantha, the Wellspring Lurrus of the Dream-Den Ten companions from Ikoria , one for each color pair, all hybrid-mana cards to work best in Limited
She also lets you draw a card at the end of every players turn if any player loses 4 or more Life that turn, which given the multiplayer nature of Commander, could reward you if others are playing well (or poorly)
Gale Thrust may begin at 60, but if Mega Lopunny moved from the Bench to the Active Spot that turn, it jumps to 230 damage, which is an excellent rate for a single Colourless attachment