Until end of turn, you dont lose this mana as steps and phases end
There are lots of moving parts in this deck but to put it simply, the heavy ramp focus allows you to quickly build your board and Omos capacity to tack an everything counter on lands and creatures has plenty of opportunity for payoff
If your deck runs a lot of Level 2 monsters, it can utilise pieces of the Spright engine
Many go for the blind or booster packs sealed packages of eight to 15 assorted cards that offer the excitement of potentially getting a mystery or rare card revealed only upon opening
Finally there's a +1/+1 counter theme, putting counters on your creatures and then rewarding you for having counters.We add counters with cards like Together Forever, Retreat to Kazandu, and Elite Scaleguard, then get rewarded for doing so by drawing cards with Armorcraft Judge, protecting our creatures from removal and drawing more cards with Inspiring Call, and giving our creatures flying with Abzan Falconer
If that creature isn't on the battlefield at that time, use its power as it last existed on the battlefield