It's better to remove a problem card even if a different problem card can show up because, odds are, it'll hit something much weaker
When you put counters on an active Nexus via modular, the counters stay on even when the Nexus stops being a creature and will still pump that Nexus the next time you activate it
Which one will rise to the top to be the most popular creature type in Magic

1 Satya, Aetherflux Genius 1 Cayth, Famed Mechanist 1 Sphinx of the Revelation 1 Filigree Racer 1 Localized Destruction 1 Aether Refinery 1 Hourglass of the Lost 1 Salvation Colossus 1 Blaster Hulk 1 Razorfield Ripper 1 Silverquill Lecturer 1 Overclocked Electromancer 1 Stone Idol Generator 1 Aurora Shifter 1 Conversion Apparatus 1 Gonti's Aether Heart 1 Lightning Runner 1 Aethertide Whale 1 Aethergeode Miner 1 Aethersphere Harvester 1 Bident of Thassa 1 Temple of Enlightenment 1 Battlefield Forge 1 Myr Battlesphere 1 Grenzo, Havoc Raiser 1 Brudiclad, Telchor Engineer 1 Coveted Jewel 1 Goldspan Dragon 1 Legion Loyalty 1 Mystic Gate 1 Akroma's Will 1 Adarkar Wastes 1 Shivan Reef 1 Coalition Relic 1 Combustible Gearhulk 1 Aetherworks Marvel 1 Angel of Invention 1 Confiscation Coup 1 Aetherstorm Roc 1 Aethersquall Ancient 1 Frostboil Snarl 1 Austere Command 1 Furycalm Snarl 1 Midnight Clock 1 Professional Face-Breaker 1 Farewell 1 Port Town 1 Temple of Triumph 1 Solemn Simulacrum 1 Temple of Epiphany 1 Prairie Stream 1 Skyclave Apparition 1 Castle Vantress 1 Jolted Awake 1 Bespoke Battlewagon 1 Roil Cartographer 1 Unstable Amulet 1 Amped Raptor 1 Solar Transformer 1 Scurry of Gremlins 1 Izzet Generatorium 1 Talisman of Conviction 1 Tezzeret's Gambit 1 Izzet Boilerworks 1 Azorius Chancery 1 Talisman of Progress 1 Command Tower 1 Burnished Hart 1 Arcane Signet 1 Sol Ring 1 Era of Innovation 1 Aether Hub 1 Decoction Module 1 Glimmer of Genius 1 Whirler Virtuoso 1 Talisman of Creativity 1 Swords to Plowshares 1 Wayfarer's Bauble 1 Demolition Field 1 Mystic Monastery 10 Plains 5 Island 5 Mountain Creative Energy and Creative Energy Collector's Edition Tokens Creative Energy and Creative Energy Collector's Edition each include 10 double-sided tokens, with ripple foil on the front side and non-foil on the back for Collector's Edition tokens

When he was behind, Clone would even out the battlefield
This ability is definitely a little bit narrow, but if youve got a ton of counters on one of your permanents, this can alter the board in a big way