Originally intended for Ravnica: City of Guilds, this mechanic was ultimately scrapped, however, theyve since been reborn as Battle cards
No one else will be able to verify you did it correctly, but we'll give you the benefit of the doubt
Not only that, but even if your opponent is swinging in with a 10/10, you can still block it and gain 10 life, because thats how damage works in MTG
Theres always the downside of not wanting to discard a spell to kill something since the best use of looting tends to be filtering through excess lands, but having more options is rarely bad
In addition, other Humans you control get +1/+1 for each counter on Kyler
We really have gone all out creating new, expressive ways to bring joy to Magic cards