Can You Respond to Dredge
Legendary Creature - Soldier Giant Pantlaza, Sun-Favored Whenever Pantlaza or another Dinosaur you control enters, you may discover X, where X is that creature's toughness
Elderfang Venom Elderfang Venom is an enchantment that boosts your elves by giving them deathtouch when they attack, plus a death trigger
This also works in Bant Toughness or Defender matters or just a strong early drop that cannot be answered buy anyone, and again, who is running an 8 power dork in modern Commander to crack it
Its face commander Kasla, the Broken Halo, has convoke itself, which helps to discount around the commander tax while also giving you control of your top deck while drawing cards when cards with convoke are cast
While Mono-White Lifegain looks solid, there's some potential to splash into other colors as well