You run the risk of having your big enchantment blown up without impacting the board, but who runs enchantment removal in Commander
Undying (When this creature dies, if it had no +1/+1 counters on it, return it to the battlefield under its owners control with a +1/+1 counter on it.) Illustrated by Campbell White Standard Not Legal Alchemy Not Legal Pioneer Not Legal Historic Not Legal Modern Not Legal Brawl Not Legal Legacy Legal Comp
7 Grinder Golem Cards like Lava Golem and the Kaiju archetype are synonymous with having effects that summon strong monsters to the opponent's side of the field, but while Grinder Golem fell into this same category, it wouldn't see play until the release of Link Summons
Svyelun of Sea and Sky Ward 1 is more of an annoyance than a real protective ability, but Svyelun of Sea and Sky has built-in resilience, so your opponent cant brush it aside
Sometimes a spell will require targets for part of its effect that apply only if it's kicked