garganacl pokemon card value AR - 070/063 you may attach a Basic F Energy card from your discard pile to 1 of your Pokemon Garganacl #178 Pokemon Paldean Fates,

Other more token-based card draw engines are Idol of Oblivion or Mentor of the Meek

Mosswort Bridges free spell is an incredibly great value when your Commander is big enough to get you 60% of the way towards its Hideaway trigger by itself, and just like with Bojuka Bog, you can end up in the later stages of the game getting an extra spell turn after turn via Life from the Loam and sacrificing it to The Gitrog Monster, so its even better here than it usually would be

No, you cannot respond to mana abilities

You will want a ton of card draw and plenty of mana in a commander deck with Aeve since you'll want to be casting as many spells as you can with all the mana you can muster