Modular

Modular is a keyword ability that causes a permanent to enter the battlefield with +1/+1 counters equal to the Modular number. When that permanent dies, its controller may put a +1/+1 counter onto an artifact creature for each +1/+1 counter the permanent had on it when it died. 
==History==
Modular first appeared in Darksteel and Fifth Dawn. Permanents with modular tend to hold similar qualities, in that they are all artifacts with zero printed power. Until the release of Modern Horizons, the only creatures with Modular also had "Arcbound" in the title, and is the first modular creature with nonzero printed toughness. Alongside other cards with modular, the first non-creature card with Modular - - was printed in Modern Horizons 2. Modular cards also appeared in Universes Beyond Transformers and in Modern Horizons 3.
==="Fixed Modular"===
Mark Rosewater had stated that if R&D had modular to do over, they wouldn’t restrict it to artifact creatures (either who could have it or who could get the counters).
<c>Star Pupil</c> and <c>Spiteful Squad</c> from Strixhaven: School of Mages have a similar ability to Modular, but when they die, all counters on it of any type can be moved to any creature its controller controls. Similar cards also appear in later sets (e.g. <c>Parish-Blade Trainee</c> and <c>Iron Apprentice</c>). These are referred to as having "fixed Modular".
==Rules==
===Poison Modular===
Poison Modular was a keyword ability seen on the <c>Arcbound Mamba</c> test card as part of Unknown Event. A creature with it enters the battlefield with two +1/+1 counters on it. When it dies, the player may put its +1/+1 counters on target player or artifact creature. If they’re put on a player this way, they become poison counters.
==Rulings==
*If a creature with Modular gets enough -1/-1 counters to make its toughness 0 or cause the damage on it to be lethal, the Modular ability will still give another artifact creature +1/+1 counters equal to the number the Modular creature had before it got -1/-1 counters. See rule 704.8.
*For the enters-the-battlefield ability, the number of counters the permanent gets is equal to the number that follows the word "Modular" on the card.
*For the leaves-the-battlefield ability, the number of +1/+1 counters on the permanent at the time it left the battlefield is what's relevant; the number after "Modular" doesn't matter.
*When a creature with Modular dies, you may put +1/+1 counters equal to the number it had onto a single target artifact creature. You can't split them among two or more artifact creatures, or put less than the number of counters it had when it died unless you choose not to use the ability.
==Examples==
==Cards that grant Modular==
===Creatures===
*<c>Blaster, Combat DJ</c> 
==References==