Damage marked on permanents won't be removed until you actually get to the cleanup step (which will happen after your second end step), and "until end of turn" and "this turn" effects won't end until the cleanup step either
Tsabo Tavoc from Phyrexia, of course
When you do, target creature an opponent controls gets -X/-X until end of turn, where X is the greatest mana value among cards in your graveyard
In contrast, the Base Set 2 Charizard is a later reprint with only one official version (#4/130), lacking those early variants
Archangel Elspeth does exactly that, while Birgi can help us with mana to activate Agrus in the same turn we play the enablers
1/1 Watermark: Order of the Widget Illustrated by Chris Seaman Standard Not Legal Alchemy Not Legal Pioneer Not Legal Historic Not Legal Modern Not Legal Brawl Not Legal Legacy Not Legal Comp