The first is that [Fraens] noticed that the glossy finish on some cards interfered with scanning, leading him to add a diffused LED ringlight to the rig
16 3D2Y Two Years In Sabaody
Players can't respond to your choice of a +1/+1 counter or haste
End of turn, put the Elder in my hand, unless I have two or more experience counters, in which case, it heads back to the battlefield, for more sacrificing for more landing for more experience countering, etc
Worse, because you must code-switch from SIGN (3) to SYMBOL () the brain doesn't actually see the suit until you consciously look for it...it's part of the other symbol on the card (the entire back design is a symbol psychologically)
Phyrexian Altar allows for some broken combo loops by letting you convert creatures into mana, yet it doesn't do much of anything by itself