japanese pokemon card 118 Luxray ex SR 118/101 Mask of Change Violet series Mega Darkrai ex 118/081 Abyss

The most obvious answer is Amulet Titan, where copying an Amulet of Vigor on turn two offers for many game-ending Primeval Titan lines on turn three

Save a few exceptions which are usually the least interesting ones, all titans are actually giants, so make use of Aegar, the Freezing Flame, Calamity Bearer, Sunrise Sovereign, and basically every other card that could fit right into giant typal decks

What competitive formats is Remove Soul played in

While it doesnt work so well with counter magic (unless you use it on your turn), a storm deck could probably be easily built around this commander

Tyvars Stand One mana to provide near-perfect protection for a creature is pretty reasonable