mtg cards like expedition map Pictures at an Expedition: Commander Expedition Map (Uncharted) | Secret

All you need is to have an opponent lose exactly one life, like off of a Cauldron Familiar, to start an infinite loop until an opponent loses.

It's similarly costed as a Sorcery as See Beyond (1U Draw two cards, then shuffle a card from your hand into your library.) Most of the 'draw two cards' spells are Instants, or costed at three mana

Thats not ideal but not a big issue if your deck has enough draw

For example, if you really need to cast Reckless Rage twice this turn while your opponents are tapped out, you can do so once during your turn and then again on your end step once the spell returns to your hand

For example, with the advent of equipment, he could actually create an equipment of the Blackblade that powers him up when equipped