As for the latter, it digs you into your deck for a free creature each turn, so hand size isnt an issue
Foxglove by Anna Podedworna Mr
Support Codsworth, Handy Helper Puresteel Paladin Ardenn, Intrepid Archaeologist Stoneforge Mystic Halvar, God of Battle Pearl-Ear, Imperial Advisor Envoy of the Ancestors Loyal Inventor Stonehewer Giant Attackers Alela, Artful Provocateur Balan, Wandering Knight Kappa Cannoneer Support/attacker hybrids Armored Skyhunter Basim Ibn Ashaq Baleful Strix Ledger Shredder Raffine, Scheming Seer Starnheim Courser Danitha Capashen, Paragon Danitha, Benalias Hope Zur the Enchanter Equippable Creatures Batterskull Cloudsteel Kirin Razorfield Ripper Nettlecyst Glyph Elemental Eidolon of Countless Battles Power Boosts Arna Kennerd, Skycaptain thrives by powering up your Creatures, turning them into high-damage, well-protected, hard-to-block threats by creating additional copies of Equipment, Auras, and +1/+1 counters
Commanders like Brimaz, Nazahn, and Mirri offer unique abilities and strategies for dominating the battlefield with Cat decks