Primordial Mist [Commander 2018] Viashino Wizard put a +1/+1 counter on

put a +1/+1 counter on each creature you control with a +1/+1 counter on it

and titanic monsters

Set: Secret Lair Drop Series Type: Creature — Human Soldier Rarity: Rare Cost: {1}{W}{W} Other Soldier creatures get +1/+1 and have first strike

and collapsed in a fit of horrifying giggles

Set: Core Set 2021 Type: Creature — Siren Rarity: Common Cost: {2}{U} Flying

Primordial Mist [Commander 2018] Viashino Wizard put a +1/+1 counter onSet: Commander 2018 Type: Enchantment Rarity: Rare Cost: {4}{U} At the beginning of your end step, you may manifest the top card of your library. (Put it onto the battlefield face down as a 2 2 creature. Turn it face up any time for its mana cost if it's a creature card.) Exile a face down permanent you control face up: You may play that card this turn. (You still pay its costs. Timing rules still apply.)