Monastery Swiftspear Monastery Swiftspear has pretty much always been relevant since being printed nearly 10 years ago
It isnt always a discount, but usually comes with some other bonus if it costs more than the spells normal mana cost
Should I choose to hold Aerial Boost until after the declare blockers step, my opponent is very likely to block my Alabaster Host Sanctifier with their Redcap Heelslasher, as it would ordinarily survive the damage from my creature unscathed thanks to its First Strike ability (and even without First Strike, it has more than enough toughness to boot)
More information on this event will be available in the future, so keep an eye on the weekly MTG Arena Announcements
Always pack enough cards to fill your inkwell : If you dont have enough characters, or abilities, to create a strong ink-well pile then youll eventually be outpaced by your rival
That gives you a ton of strategically un-important targets to sacrifice and a way to ensure each sacrifice yields a ton of new creatures each time